438896354636 has 12 divisors (see below), whose sum is σ = 769632918600. Its totient is φ = 219001235040.

The previous prime is 438896354629. The next prime is 438896354651. The reversal of 438896354636 is 636453698834.

It is a super-2 number, since 2×438896354636² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111733361 + ... + 111737288.

It is an arithmetic number, because the mean of its divisors is an integer number (64136076550).

Almost surely, 2^438896354636 is an apocalyptic number.

It is an amenable number.

438896354636 is a deficient number, since it is larger than the sum of its proper divisors (330736563964).

438896354636 is a wasteful number, since it uses less digits than its factorization.

438896354636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223471144 (or 223471142 counting only the distinct ones).

The product of its digits is 268738560, while the sum is 65.

The spelling of 438896354636 in words is "four hundred thirty-eight billion, eight hundred ninety-six million, three hundred fifty-four thousand, six hundred thirty-six".