438881670 has 48 divisors (see below), whose sum is σ = 1142249472. Its totient is φ = 116916480.

The previous prime is 438881659. The next prime is 438881701. The reversal of 438881670 is 76188834.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 120699 + ... + 124281.

It is an arithmetic number, because the mean of its divisors is an integer number (23796864).

Almost surely, 2^438881670 is an apocalyptic number.

438881670 is an abundant number, since it is smaller than the sum of its proper divisors (703367802).

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

438881670 is a wasteful number, since it uses less digits than its factorization.

438881670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4957 (or 4954 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 438881670 is about 20949.5028580632. The cubic root of 438881670 is about 759.9455581962.

The spelling of 438881670 in words is "four hundred thirty-eight million, eight hundred eighty-one thousand, six hundred seventy".