438631396 has 24 divisors (see below), whose sum is σ = 878048640. Its totient is φ = 187816512.

The previous prime is 438631387. The next prime is 438631421. The reversal of 438631396 is 693136834.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27840 + ... + 40648.

It is an arithmetic number, because the mean of its divisors is an integer number (36585360).

Almost surely, 2^438631396 is an apocalyptic number.

It is an amenable number.

438631396 is an abundant number, since it is smaller than the sum of its proper divisors (439417244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

438631396 is a wasteful number, since it uses less digits than its factorization.

438631396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14043 (or 14041 counting only the distinct ones).

The product of its digits is 279936, while the sum is 43.

The square root of 438631396 is about 20943.5287380136. The cubic root of 438631396 is about 759.8010767470.

The spelling of 438631396 in words is "four hundred thirty-eight million, six hundred thirty-one thousand, three hundred ninety-six".