506491370 has 64 divisors (see below), whose sum is σ = 1203538176. Its totient is φ = 148577280.

The previous prime is 506491369. The next prime is 506491393. The reversal of 506491370 is 73194605.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 506491370.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6257 + ... + 32436.

It is an arithmetic number, because the mean of its divisors is an integer number (18805284).

Almost surely, 2^506491370 is an apocalyptic number.

506491370 is an abundant number, since it is smaller than the sum of its proper divisors (697046806).

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

506491370 is a wasteful number, since it uses less digits than its factorization.

506491370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38735.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 506491370 is about 22505.3631385943. The cubic root of 506491370 is about 797.1205704158.

The spelling of 506491370 in words is "five hundred six million, four hundred ninety-one thousand, three hundred seventy".