538291290 has 16 divisors (see below), whose sum is σ = 1291899168. Its totient is φ = 143544336.

The previous prime is 538291277. The next prime is 538291291. The reversal of 538291290 is 92192835.

It is not an unprimeable number, because it can be changed into a prime (538291291) 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, 8971492 + ... + 8971551.

It is an arithmetic number, because the mean of its divisors is an integer number (80743698).

Almost surely, 2^538291290 is an apocalyptic number.

538291290 is an abundant number, since it is smaller than the sum of its proper divisors (753607878).

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

538291290 is a wasteful number, since it uses less digits than its factorization.

538291290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17943053.

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 538291290 is about 23201.1053615986. The cubic root of 538291290 is about 813.4654602973.

The spelling of 538291290 in words is "five hundred thirty-eight million, two hundred ninety-one thousand, two hundred ninety".