507642438 has 16 divisors (see below), whose sum is σ = 1029193776. Its totient is φ = 166896000.

The previous prime is 507642397. The next prime is 507642439. The reversal of 507642438 is 834246705.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 507642396 and 507642405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (507642439) 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, 579063 + ... + 579938.

It is an arithmetic number, because the mean of its divisors is an integer number (64324611).

Almost surely, 2^507642438 is an apocalyptic number.

507642438 is an abundant number, since it is smaller than the sum of its proper divisors (521551338).

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

507642438 is a wasteful number, since it uses less digits than its factorization.

507642438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1159079.

The product of its (nonzero) digits is 161280, while the sum is 39.

The square root of 507642438 is about 22530.9218186918. The cubic root of 507642438 is about 797.7239671926.

The spelling of 507642438 in words is "five hundred seven million, six hundred forty-two thousand, four hundred thirty-eight".