538464390 has 16 divisors (see below), whose sum is σ = 1292314608. Its totient is φ = 143590496.

The previous prime is 538464347. The next prime is 538464391. The reversal of 538464390 is 93464835.

538464390 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538464391) 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, 8974377 + ... + 8974436.

It is an arithmetic number, because the mean of its divisors is an integer number (80769663).

Almost surely, 2^538464390 is an apocalyptic number.

538464390 is an abundant number, since it is smaller than the sum of its proper divisors (753850218).

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

538464390 is a wasteful number, since it uses less digits than its factorization.

538464390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17948823.

The product of its (nonzero) digits is 311040, while the sum is 42.

The square root of 538464390 is about 23204.8354874582. The cubic root of 538464390 is about 813.5526471562.

The spelling of 538464390 in words is "five hundred thirty-eight million, four hundred sixty-four thousand, three hundred ninety".