538529388 has 48 divisors (see below), whose sum is σ = 1337616000. Its totient is φ = 168144768.

The previous prime is 538529371. The next prime is 538529389. The reversal of 538529388 is 883925835.

It is a self number, because there is not a number n which added to its sum of digits gives 538529388.

It is not an unprimeable number, because it can be changed into a prime (538529389) 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, 7023 + ... + 33561.

It is an arithmetic number, because the mean of its divisors is an integer number (27867000).

Almost surely, 2^538529388 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 538529388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (668808000).

538529388 is an abundant number, since it is smaller than the sum of its proper divisors (799086612).

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

538529388 is a wasteful number, since it uses less digits than its factorization.

538529388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26654 (or 26652 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 51.

The square root of 538529388 is about 23206.2359722554. The cubic root of 538529388 is about 813.5853804674.

The spelling of 538529388 in words is "five hundred thirty-eight million, five hundred twenty-nine thousand, three hundred eighty-eight".