438144980 has 48 divisors (see below), whose sum is σ = 1132440960. Its totient is φ = 138665088.

The previous prime is 438144943. The next prime is 438145007. The reversal of 438144980 is 89441834.

It is a super-3 number, since 3×438144980³ (a number of 27 digits) contains 333 as substring.

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, 118550 + ... + 122189.

It is an arithmetic number, because the mean of its divisors is an integer number (23592520).

Almost surely, 2^438144980 is an apocalyptic number.

It is an amenable number.

438144980 is an abundant number, since it is smaller than the sum of its proper divisors (694295980).

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

438144980 is a wasteful number, since it uses less digits than its factorization.

438144980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240768 (or 240766 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 41.

The square root of 438144980 is about 20931.9129560583. The cubic root of 438144980 is about 759.5201148718.

The spelling of 438144980 in words is "four hundred thirty-eight million, one hundred forty-four thousand, nine hundred eighty".