538431 has 8 divisors (see below), whose sum is σ = 725424. Its totient is φ = 355200.

The previous prime is 538423. The next prime is 538457. The reversal of 538431 is 134835.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 538431 - 2³ = 538423 is a prime.

It is a super-2 number, since 2×538431² = 579815883522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 586 + ... + 1191.

It is an arithmetic number, because the mean of its divisors is an integer number (90678).

2⁵³⁸⁴³¹ is an apocalyptic number.

538431 is a deficient number, since it is larger than the sum of its proper divisors (186993).

538431 is a wasteful number, since it uses less digits than its factorization.

538431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1881.

The product of its digits is 1440, while the sum is 24.

The square root of 538431 is about 733.7785769563. The cubic root of 538431 is about 81.3535830764.

It can be divided in two parts, 538 and 431, that added together give a palindrome (969).

The spelling of 538431 in words is "five hundred thirty-eight thousand, four hundred thirty-one".