438325523 has 4 divisors (see below), whose sum is σ = 452465088. Its totient is φ = 424185960.

The previous prime is 438325493. The next prime is 438325541. The reversal of 438325523 is 325523834.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 438325523 - 2¹² = 438321427 is a prime.

It is a super-2 number, since 2×438325523² = 384258528226447058, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (438325543) 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, 7069736 + ... + 7069797.

It is an arithmetic number, because the mean of its divisors is an integer number (113116272).

Almost surely, 2^438325523 is an apocalyptic number.

438325523 is a deficient number, since it is larger than the sum of its proper divisors (14139565).

438325523 is a wasteful number, since it uses less digits than its factorization.

438325523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14139564.

The product of its digits is 86400, while the sum is 35.

The square root of 438325523 is about 20936.2251373069. The cubic root of 438325523 is about 759.6244237314.

The spelling of 438325523 in words is "four hundred thirty-eight million, three hundred twenty-five thousand, five hundred twenty-three".