438158 has 24 divisors (see below), whose sum is σ = 812592. Its totient is φ = 176064.

The previous prime is 438143. The next prime is 438169. The reversal of 438158 is 851834.

It is a self number, because there is not a number n which added to its sum of digits gives 438158.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1535 + ... + 1797.

It is an arithmetic number, because the mean of its divisors is an integer number (33858).

2⁴³⁸¹⁵⁸ is an apocalyptic number.

438158 is a deficient number, since it is larger than the sum of its proper divisors (374434).

438158 is a wasteful number, since it uses less digits than its factorization.

438158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296 (or 289 counting only the distinct ones).

The product of its digits is 3840, while the sum is 29.

The square root of 438158 is about 661.9350421303. The cubic root of 438158 is about 75.9527638146.

The spelling of 438158 in words is "four hundred thirty-eight thousand, one hundred fifty-eight".