3957544890 has 48 divisors (see below), whose sum is σ = 11081128968. Its totient is φ = 974164608.

The previous prime is 3957544853. The next prime is 3957544891. The reversal of 3957544890 is 984457593.

3957544890 is a `hidden beast` number, since 3 + 9 + 5 + 7 + 544 + 8 + 90 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 3023570169 + 933974721 = 54987^2 + 30561^2 .

It is a super-2 number, since 2×3957544890² = 31324323112730224200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3957544891) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1690089 + ... + 1692428.

Almost surely, 2^3957544890 is an apocalyptic number.

3957544890 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3957544890 is an abundant number, since it is smaller than the sum of its proper divisors (7123584078).

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

3957544890 is a wasteful number, since it uses less digits than its factorization.

3957544890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3382543 (or 3382540 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 54.

The square root of 3957544890 is about 62909.0207362982. The cubic root of 3957544890 is about 1581.7649574118.

The spelling of 3957544890 in words is "three billion, nine hundred fifty-seven million, five hundred forty-four thousand, eight hundred ninety".