538401 has 8 divisors (see below), whose sum is σ = 722304. Its totient is φ = 356720.

The previous prime is 538399. The next prime is 538411. The reversal of 538401 is 104835.

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

It is a cyclic number.

It is not a de Polignac number, because 538401 - 2¹ = 538399 is a prime.

538401 is a lucky 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, 136 + ... + 1046.

It is an arithmetic number, because the mean of its divisors is an integer number (90288).

2⁵³⁸⁴⁰¹ is an apocalyptic number.

It is an amenable number.

538401 is a deficient number, since it is larger than the sum of its proper divisors (183903).

538401 is a wasteful number, since it uses less digits than its factorization.

538401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 538401 is about 733.7581345375. The cubic root of 538401 is about 81.3520721104.

It can be divided in two parts, 538 and 401, that added together give a palindrome (939).

The spelling of 538401 in words is "five hundred thirty-eight thousand, four hundred one".