502140904 has 8 divisors (see below), whose sum is σ = 941514210. Its totient is φ = 251070448.

The previous prime is 502140901. The next prime is 502140973. The reversal of 502140904 is 409041205.

It can be written as a sum of positive squares in only one way, i.e., 394022500 + 108118404 = 19850^2 + 10398^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (502140901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31383799 + ... + 31383814.

Almost surely, 2^502140904 is an apocalyptic number.

It is an amenable number.

502140904 is a deficient number, since it is larger than the sum of its proper divisors (439373306).

502140904 is a wasteful number, since it uses less digits than its factorization.

502140904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62767619 (or 62767615 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 502140904 is about 22408.5007084365. The cubic root of 502140904 is about 794.8317373943.

The spelling of 502140904 in words is "five hundred two million, one hundred forty thousand, nine hundred four".