438157 has 4 divisors (see below), whose sum is σ = 443520. Its totient is φ = 432796.

The previous prime is 438143. The next prime is 438169. The reversal of 438157 is 751834.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 438157 - 2⁷ = 438029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (436157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2557 + ... + 2722.

It is an arithmetic number, because the mean of its divisors is an integer number (110880).

2⁴³⁸¹⁵⁷ is an apocalyptic number.

It is an amenable number.

438157 is a deficient number, since it is larger than the sum of its proper divisors (5363).

438157 is an equidigital number, since it uses as much as digits as its factorization.

438157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5362.

The product of its digits is 3360, while the sum is 28.

The square root of 438157 is about 661.9342867687. The cubic root of 438157 is about 75.9527060327.

It can be divided in two parts, 438 and 157, that added together give a palindrome (595).

The spelling of 438157 in words is "four hundred thirty-eight thousand, one hundred fifty-seven".