438997020 has 96 divisors (see below), whose sum is σ = 1532514816. Its totient is φ = 91219200.

The previous prime is 438997007. The next prime is 438997049. The reversal of 438997020 is 20799834.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42891 + ... + 52130.

It is an arithmetic number, because the mean of its divisors is an integer number (15963696).

Almost surely, 2^438997020 is an apocalyptic number.

It is an amenable number.

438997020 is an abundant number, since it is smaller than the sum of its proper divisors (1093517796).

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

438997020 is a wasteful number, since it uses less digits than its factorization.

438997020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95051 (or 95049 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 438997020 is about 20952.2557258163. The cubic root of 438997020 is about 760.0121304620.

The spelling of 438997020 in words is "four hundred thirty-eight million, nine hundred ninety-seven thousand, twenty".