3549850920 has 1024 divisors, whose sum is σ = 16323379200. Its totient is φ = 671846400.

The previous prime is 3549850919. The next prime is 3549850933. The reversal of 3549850920 is 290589453.

3549850920 is a `hidden beast` number, since 3 + 54 + 98 + 509 + 2 + 0 = 666.

3549850920 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 (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 114511305 + ... + 114511335.

It is an arithmetic number, because the mean of its divisors is an integer number (15940800).

Almost surely, 2^3549850920 is an apocalyptic number.

3549850920 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 3549850920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8161689600).

3549850920 is an abundant number, since it is smaller than the sum of its proper divisors (12773528280).

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

3549850920 is a wasteful number, since it uses less digits than its factorization.

3549850920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98 (or 76 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The square root of 3549850920 is about 59580.6253743614. The cubic root of 3549850920 is about 1525.4689476019.

The spelling of 3549850920 in words is "three billion, five hundred forty-nine million, eight hundred fifty thousand, nine hundred twenty".