438988 has 18 divisors (see below), whose sum is σ = 845348. Its totient is φ = 199320.

The previous prime is 438983. The next prime is 438989. The reversal of 438988 is 889834.

438988 = T₂₇₇ + T₂₇₈ + ... + T₂₈₇.

It is a self number, because there is not a number n which added to its sum of digits gives 438988.

It is not an unprimeable number, because it can be changed into a prime (438983) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31 + ... + 937.

2⁴³⁸⁹⁸⁸ is an apocalyptic number.

It is an amenable number.

438988 is a deficient number, since it is larger than the sum of its proper divisors (406360).

438988 is a wasteful number, since it uses less digits than its factorization.

438988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 933 (or 920 counting only the distinct ones).

The product of its digits is 55296, while the sum is 40.

The square root of 438988 is about 662.5616952405. The cubic root of 438988 is about 76.0006925145. Note that the first 3 decimals are identical.

The spelling of 438988 in words is "four hundred thirty-eight thousand, nine hundred eighty-eight".