438264 has 32 divisors (see below), whose sum is σ = 1218000. Its totient is φ = 146016.

The previous prime is 438259. The next prime is 438271. The reversal of 438264 is 462834.

438264 = T₃₂₇ + T₃₂₈ + ... + T₃₃₄.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

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 7 ways as a sum of consecutive naturals, for example, 799 + ... + 1230.

2⁴³⁸²⁶⁴ is an apocalyptic number.

It is an amenable number.

438264 is an abundant number, since it is smaller than the sum of its proper divisors (779736).

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

438264 is a wasteful number, since it uses less digits than its factorization.

438264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2044 (or 2034 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 438264 is about 662.0151055678. The cubic root of 438264 is about 75.9588881988.

The spelling of 438264 in words is "four hundred thirty-eight thousand, two hundred sixty-four".