438137970 has 32 divisors (see below), whose sum is σ = 1065940992. Its totient is φ = 115235712.

The previous prime is 438137941. The next prime is 438137977. The reversal of 438137970 is 79731834.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (438137977) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97842 + ... + 102221.

It is an arithmetic number, because the mean of its divisors is an integer number (33310656).

Almost surely, 2^438137970 is an apocalyptic number.

438137970 is an abundant number, since it is smaller than the sum of its proper divisors (627803022).

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

438137970 is a wasteful number, since it uses less digits than its factorization.

438137970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200146.

The product of its (nonzero) digits is 127008, while the sum is 42.

The square root of 438137970 is about 20931.7455077210. The cubic root of 438137970 is about 759.5160642610.

The spelling of 438137970 in words is "four hundred thirty-eight million, one hundred thirty-seven thousand, nine hundred seventy".