813333474 has 20 divisors (see below), whose sum is σ = 1822469814. Its totient is φ = 271111104.

The previous prime is 813333439. The next prime is 813333481. The reversal of 813333474 is 474333318.

It can be written as a sum of positive squares in only one way, i.e., 751034025 + 62299449 = 27405^2 + 7893^2 .

It is a super-2 number, since 2×813333474² = 1323022679857817352, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2510127 + ... + 2510450.

Almost surely, 2^813333474 is an apocalyptic number.

813333474 is an abundant number, since it is smaller than the sum of its proper divisors (1009136340).

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

813333474 is a wasteful number, since it uses less digits than its factorization.

813333474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5020591 (or 5020582 counting only the distinct ones).

The product of its digits is 72576, while the sum is 36.

The square root of 813333474 is about 28519.0019811353. The cubic root of 813333474 is about 933.4467520615.

The spelling of 813333474 in words is "eight hundred thirteen million, three hundred thirty-three thousand, four hundred seventy-four".