3489421320 has 480 divisors, whose sum is σ = 14471982720. Its totient is φ = 723098880.

The previous prime is 3489421301. The next prime is 3489421339. The reversal of 3489421320 is 231249843.

3489421320 is a `hidden beast` number, since 3 + 489 + 42 + 132 + 0 = 666.

3489421320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3489421301) and next prime (3489421339).

It is a super-2 number, since 2×3489421320² = 24352122296941084800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 9507777 + ... + 9508143.

It is an arithmetic number, because the mean of its divisors is an integer number (30149964).

Almost surely, 2^3489421320 is an apocalyptic number.

3489421320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3489421320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7235991360).

3489421320 is an abundant number, since it is smaller than the sum of its proper divisors (10982561400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3489421320 is a wasteful number, since it uses less digits than its factorization.

3489421320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423 (or 395 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 3489421320 is about 59071.3240075081. The cubic root of 3489421320 is about 1516.7632706383.

The spelling of 3489421320 in words is "three billion, four hundred eighty-nine million, four hundred twenty-one thousand, three hundred twenty".