538438528 has 16 divisors (see below), whose sum is σ = 1072670760. Its totient is φ = 269219200.

The previous prime is 538438517. The next prime is 538438529. The reversal of 538438528 is 825834835.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538438529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2103148 + ... + 2103403.

Almost surely, 2^538438528 is an apocalyptic number.

It is an amenable number.

538438528 is a deficient number, since it is larger than the sum of its proper divisors (534232232).

538438528 is an equidigital number, since it uses as much as digits as its factorization.

538438528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4206565 (or 4206553 counting only the distinct ones).

The product of its digits is 921600, while the sum is 46.

The square root of 538438528 is about 23204.2782262237. The cubic root of 538438528 is about 813.5396221937.

The spelling of 538438528 in words is "five hundred thirty-eight million, four hundred thirty-eight thousand, five hundred twenty-eight".