438906316 has 12 divisors (see below), whose sum is σ = 771471288. Its totient is φ = 218485952.

The previous prime is 438906311. The next prime is 438906317. The reversal of 438906316 is 613609834.

It is not an unprimeable number, because it can be changed into a prime (438906311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240781 + ... + 242596.

It is an arithmetic number, because the mean of its divisors is an integer number (64289274).

Almost surely, 2^438906316 is an apocalyptic number.

It is an amenable number.

438906316 is a deficient number, since it is larger than the sum of its proper divisors (332564972).

438906316 is a wasteful number, since it uses less digits than its factorization.

438906316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483608 (or 483606 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 438906316 is about 20950.0910737877. The cubic root of 438906316 is about 759.9597831905.

The spelling of 438906316 in words is "four hundred thirty-eight million, nine hundred six thousand, three hundred sixteen".