3944896564 has 24 divisors (see below), whose sum is σ = 8161856640. Its totient is φ = 1632370656.

The previous prime is 3944896559. The next prime is 3944896577. The reversal of 3944896564 is 4656984493.

It is a hoax number, since the sum of its digits (58) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (58).

It is a junction number, because it is equal to n+sod(n) for n = 3944896499 and 3944896508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2428312 + ... + 2429935.

It is an arithmetic number, because the mean of its divisors is an integer number (340077360).

Almost surely, 2^3944896564 is an apocalyptic number.

It is an amenable number.

3944896564 is an abundant number, since it is smaller than the sum of its proper divisors (4216960076).

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

3944896564 is a wasteful number, since it uses less digits than its factorization.

3944896564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4858287 (or 4858285 counting only the distinct ones).

The product of its digits is 22394880, while the sum is 58.

The square root of 3944896564 is about 62808.4115704258. The cubic root of 3944896564 is about 1580.0780504091.

The spelling of 3944896564 in words is "three billion, nine hundred forty-four million, eight hundred ninety-six thousand, five hundred sixty-four".