537439590 has 64 divisors (see below), whose sum is σ = 1436037120. Its totient is φ = 143030880.

The previous prime is 537439561. The next prime is 537439613. The reversal of 537439590 is 95934735.

537439590 is a `hidden beast` number, since 53 + 7 + 4 + 3 + 9 + 590 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 156795 + ... + 160185.

It is an arithmetic number, because the mean of its divisors is an integer number (22438080).

Almost surely, 2^537439590 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 537439590, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (718018560).

537439590 is an abundant number, since it is smaller than the sum of its proper divisors (898597530).

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

537439590 is a wasteful number, since it uses less digits than its factorization.

537439590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3994 (or 3988 counting only the distinct ones).

The product of its (nonzero) digits is 510300, while the sum is 45.

The square root of 537439590 is about 23182.7433665647. The cubic root of 537439590 is about 813.0362043217.

The spelling of 537439590 in words is "five hundred thirty-seven million, four hundred thirty-nine thousand, five hundred ninety".