539631290 has 64 divisors (see below), whose sum is σ = 1111283712. Its totient is φ = 186753600.

The previous prime is 539631277. The next prime is 539631343. The reversal of 539631290 is 92136935.

Added to its reverse (92136935) it gives a square (631768225 = 25135²).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 664985 + ... + 665795.

It is an arithmetic number, because the mean of its divisors is an integer number (17363808).

Almost surely, 2^539631290 is an apocalyptic number.

539631290 is an abundant number, since it is smaller than the sum of its proper divisors (571652422).

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

539631290 is a wasteful number, since it uses less digits than its factorization.

539631290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1115.

The product of its (nonzero) digits is 43740, while the sum is 38.

The square root of 539631290 is about 23229.9653465088. The cubic root of 539631290 is about 814.1399033499.

Adding to 539631290 its reverse (92136935), we get a square (631768225 = 25135²).

The spelling of 539631290 in words is "five hundred thirty-nine million, six hundred thirty-one thousand, two hundred ninety".