438260812 has 12 divisors (see below), whose sum is σ = 836679816. Its totient is φ = 199209440.

The previous prime is 438260803. The next prime is 438260843. The reversal of 438260812 is 218062834.

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, 4980193 + ... + 4980280.

It is an arithmetic number, because the mean of its divisors is an integer number (69723318).

Almost surely, 2^438260812 is an apocalyptic number.

It is an amenable number.

438260812 is a deficient number, since it is larger than the sum of its proper divisors (398419004).

438260812 is a wasteful number, since it uses less digits than its factorization.

438260812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9960488 (or 9960486 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 438260812 is about 20934.6796488506. The cubic root of 438260812 is about 759.5870401944.

The spelling of 438260812 in words is "four hundred thirty-eight million, two hundred sixty thousand, eight hundred twelve".