438871436 has 12 divisors (see below), whose sum is σ = 768408312. Its totient is φ = 219326208.

The previous prime is 438871409. The next prime is 438871451. The reversal of 438871436 is 634178834.

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, 18005 + ... + 34668.

It is an arithmetic number, because the mean of its divisors is an integer number (64034026).

Almost surely, 2^438871436 is an apocalyptic number.

It is an amenable number.

438871436 is a deficient number, since it is larger than the sum of its proper divisors (329536876).

438871436 is a wasteful number, since it uses less digits than its factorization.

438871436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54760 (or 54758 counting only the distinct ones).

The product of its digits is 387072, while the sum is 44.

The square root of 438871436 is about 20949.2586026332. The cubic root of 438871436 is about 759.9396512561.

The spelling of 438871436 in words is "four hundred thirty-eight million, eight hundred seventy-one thousand, four hundred thirty-six".