3453390720 has 256 divisors, whose sum is σ = 13172443200. Its totient is φ = 850010112.

The previous prime is 3453390719. The next prime is 3453390737. The reversal of 3453390720 is 270933543.

3453390720 is a `hidden beast` number, since 34 + 533 + 90 + 7 + 2 + 0 = 666.

3453390720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 31 ways as a sum of consecutive naturals, for example, 216954 + ... + 232326.

Almost surely, 2^3453390720 is an apocalyptic number.

3453390720 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 3453390720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6586221600).

3453390720 is an abundant number, since it is smaller than the sum of its proper divisors (9719052480).

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

3453390720 is a wasteful number, since it uses less digits than its factorization.

3453390720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15414 (or 15396 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 36.

The square root of 3453390720 is about 58765.5572593335. The cubic root of 3453390720 is about 1511.5246679184.

The spelling of 3453390720 in words is "three billion, four hundred fifty-three million, three hundred ninety thousand, seven hundred twenty".