813752492 has 24 divisors (see below), whose sum is σ = 1630458144. Its totient is φ = 348118272.

The previous prime is 813752419. The next prime is 813752519. The reversal of 813752492 is 294257318.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10493 + ... + 41684.

It is an arithmetic number, because the mean of its divisors is an integer number (67935756).

Almost surely, 2^813752492 is an apocalyptic number.

It is an amenable number.

813752492 is an abundant number, since it is smaller than the sum of its proper divisors (816705652).

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

813752492 is a wasteful number, since it uses less digits than its factorization.

813752492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52745 (or 52743 counting only the distinct ones).

The product of its digits is 120960, while the sum is 41.

The square root of 813752492 is about 28526.3473301438. The cubic root of 813752492 is about 933.6070241001.

It can be divided in two parts, 81 and 3752492, that added together give a palindrome (3752573).

The spelling of 813752492 in words is "eight hundred thirteen million, seven hundred fifty-two thousand, four hundred ninety-two".