438664876 has 24 divisors (see below), whose sum is σ = 827743280. Its totient is φ = 202208832.

The previous prime is 438664871. The next prime is 438664931. The reversal of 438664876 is 678466834.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is not an unprimeable number, because it can be changed into a prime (438664871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40795 + ... + 50413.

Almost surely, 2^438664876 is an apocalyptic number.

It is an amenable number.

438664876 is a deficient number, since it is larger than the sum of its proper divisors (389078404).

438664876 is a wasteful number, since it uses less digits than its factorization.

438664876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10513 (or 10511 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 52.

The square root of 438664876 is about 20944.3280150021. The cubic root of 438664876 is about 759.8204077032.

The spelling of 438664876 in words is "four hundred thirty-eight million, six hundred sixty-four thousand, eight hundred seventy-six".