813745292 has 12 divisors (see below), whose sum is σ = 1462542480. Its totient is φ = 395876016.

The previous prime is 813745259. The next prime is 813745297. The reversal of 813745292 is 292547318.

It is not an unprimeable number, because it can be changed into a prime (813745297) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2748992 + ... + 2749287.

It is an arithmetic number, because the mean of its divisors is an integer number (121878540).

Almost surely, 2^813745292 is an apocalyptic number.

It is an amenable number.

813745292 is a deficient number, since it is larger than the sum of its proper divisors (648797188).

813745292 is a wasteful number, since it uses less digits than its factorization.

813745292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5498320 (or 5498318 counting only the distinct ones).

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

The square root of 813745292 is about 28526.2211307422. The cubic root of 813745292 is about 933.6042706051.

The spelling of 813745292 in words is "eight hundred thirteen million, seven hundred forty-five thousand, two hundred ninety-two".