813874452 has 24 divisors (see below), whose sum is σ = 1901093376. Its totient is φ = 270998208.

The previous prime is 813874433. The next prime is 813874483. The reversal of 813874452 is 254478318.

It is a congruent number.

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, 24948 + ... + 47435.

It is an arithmetic number, because the mean of its divisors is an integer number (79212224).

Almost surely, 2^813874452 is an apocalyptic number.

It is an amenable number.

813874452 is an abundant number, since it is smaller than the sum of its proper divisors (1087218924).

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

813874452 is a wasteful number, since it uses less digits than its factorization.

813874452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73327 (or 73325 counting only the distinct ones).

The product of its digits is 215040, while the sum is 42.

The square root of 813874452 is about 28528.4849229678. The cubic root of 813874452 is about 933.6536627795.

The spelling of 813874452 in words is "eight hundred thirteen million, eight hundred seventy-four thousand, four hundred fifty-two".