438364 has 12 divisors (see below), whose sum is σ = 793800. Its totient is φ = 211568.

The previous prime is 438341. The next prime is 438377. The reversal of 438364 is 463834.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1774 + ... + 2005.

It is an arithmetic number, because the mean of its divisors is an integer number (66150).

2⁴³⁸³⁶⁴ is an apocalyptic number.

It is an amenable number.

438364 is a deficient number, since it is larger than the sum of its proper divisors (355436).

438364 is a wasteful number, since it uses less digits than its factorization.

438364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3812 (or 3810 counting only the distinct ones).

The product of its digits is 6912, while the sum is 28.

The square root of 438364 is about 662.0906282376. The cubic root of 438364 is about 75.9646650146.

The spelling of 438364 in words is "four hundred thirty-eight thousand, three hundred sixty-four".