438679020 has 48 divisors (see below), whose sum is σ = 1322788320. Its totient is φ = 107982336.

The previous prime is 438679019. The next prime is 438679051. The reversal of 438679020 is 20976834.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 438679020.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 280425 + ... + 281984.

It is an arithmetic number, because the mean of its divisors is an integer number (27558090).

Almost surely, 2^438679020 is an apocalyptic number.

It is an amenable number.

438679020 is an abundant number, since it is smaller than the sum of its proper divisors (884109300).

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

438679020 is a wasteful number, since it uses less digits than its factorization.

438679020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562434 (or 562432 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 438679020 is about 20944.6656693297. The cubic root of 438679020 is about 759.8285739860.

The spelling of 438679020 in words is "four hundred thirty-eight million, six hundred seventy-nine thousand, twenty".