438421470 has 32 divisors (see below), whose sum is σ = 1053851040. Its totient is φ = 116730240.

The previous prime is 438421463. The next prime is 438421493. The reversal of 438421470 is 74124834.

It is a congruent number.

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, 8776 + ... + 30884.

It is an arithmetic number, because the mean of its divisors is an integer number (32932845).

Almost surely, 2^438421470 is an apocalyptic number.

438421470 is an abundant number, since it is smaller than the sum of its proper divisors (615429570).

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

438421470 is a wasteful number, since it uses less digits than its factorization.

438421470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22780.

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 438421470 is about 20938.5164230898. The cubic root of 438421470 is about 759.6798455306.

The spelling of 438421470 in words is "four hundred thirty-eight million, four hundred twenty-one thousand, four hundred seventy".