538512894 has 32 divisors (see below), whose sum is σ = 1199054880. Its totient is φ = 179150400.

The previous prime is 538512889. The next prime is 538512899. The reversal of 538512894 is 498215835.

538512894 is a `hidden beast` number, since 53 + 8 + 512 + 89 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (538512889) and next prime (538512899).

It is a super-2 number, since 2×538512894² = 579992274008510472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538512899) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18564 + ... + 37704.

It is an arithmetic number, because the mean of its divisors is an integer number (37470465).

Almost surely, 2^538512894 is an apocalyptic number.

538512894 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

538512894 is an abundant number, since it is smaller than the sum of its proper divisors (660541986).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

538512894 is a wasteful number, since it uses less digits than its factorization.

538512894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19673 (or 19667 counting only the distinct ones).

The product of its digits is 345600, while the sum is 45.

The square root of 538512894 is about 23205.8805909192. The cubic root of 538512894 is about 813.5770742576.

The spelling of 538512894 in words is "five hundred thirty-eight million, five hundred twelve thousand, eight hundred ninety-four".