506701638 has 48 divisors (see below), whose sum is σ = 1147667040. Its totient is φ = 161263872.

The previous prime is 506701607. The next prime is 506701649. The reversal of 506701638 is 836107605.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 417120 + ... + 418332.

It is an arithmetic number, because the mean of its divisors is an integer number (23909730).

Almost surely, 2^506701638 is an apocalyptic number.

506701638 is an abundant number, since it is smaller than the sum of its proper divisors (640965402).

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

506701638 is a wasteful number, since it uses less digits than its factorization.

506701638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2253 (or 2250 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 506701638 is about 22510.0341625685. The cubic root of 506701638 is about 797.2308623637.

The spelling of 506701638 in words is "five hundred six million, seven hundred one thousand, six hundred thirty-eight".