537238664 has 16 divisors (see below), whose sum is σ = 1007972700. Its totient is φ = 268445952.

The previous prime is 537238657. The next prime is 537238673. The reversal of 537238664 is 466832735.

It can be written as a sum of positive squares in 2 ways, for example, as 337016164 + 200222500 = 18358^2 + 14150^2 .

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7997 + ... + 33740.

Almost surely, 2^537238664 is an apocalyptic number.

It is an amenable number.

537238664 is a deficient number, since it is larger than the sum of its proper divisors (470734036).

537238664 is a wasteful number, since it uses less digits than its factorization.

537238664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43352 (or 43348 counting only the distinct ones).

The product of its digits is 725760, while the sum is 44.

The square root of 537238664 is about 23178.4094363699. The cubic root of 537238664 is about 812.9348717084.

The spelling of 537238664 in words is "five hundred thirty-seven million, two hundred thirty-eight thousand, six hundred sixty-four".