3957039456 has 24 divisors (see below), whose sum is σ = 10387228824. Its totient is φ = 1319013120.

The previous prime is 3957039451. The next prime is 3957039479. The reversal of 3957039456 is 6549307593.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×3957039456² = 31316322512681551872, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3957039399 and 3957039408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3957039451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20609485 + ... + 20609676.

It is an arithmetic number, because the mean of its divisors is an integer number (432801201).

Almost surely, 2^3957039456 is an apocalyptic number.

It is an amenable number.

3957039456 is an abundant number, since it is smaller than the sum of its proper divisors (6430189368).

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

3957039456 is a wasteful number, since it uses less digits than its factorization.

3957039456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41219174 (or 41219166 counting only the distinct ones).

The product of its (nonzero) digits is 3061800, while the sum is 51.

The square root of 3957039456 is about 62905.0034258007. The cubic root of 3957039456 is about 1581.6976166867.

The spelling of 3957039456 in words is "three billion, nine hundred fifty-seven million, thirty-nine thousand, four hundred fifty-six".