373806513 has 12 divisors (see below), whose sum is σ = 568361040. Its totient is φ = 236088216.

The previous prime is 373806487. The next prime is 373806527. The reversal of 373806513 is 315608373.

It is not a de Polignac number, because 373806513 - 2¹⁰ = 373805489 is a prime.

It is a super-2 number, since 2×373806513² = 279462618322438338, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (373806113) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1092831 + ... + 1093172.

It is an arithmetic number, because the mean of its divisors is an integer number (47363420).

Almost surely, 2^373806513 is an apocalyptic number.

It is an amenable number.

373806513 is a deficient number, since it is larger than the sum of its proper divisors (194554527).

373806513 is a wasteful number, since it uses less digits than its factorization.

373806513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2186028 (or 2186025 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 373806513 is about 19334.0764713497. The cubic root of 373806513 is about 720.3589471790.

The spelling of 373806513 in words is "three hundred seventy-three million, eight hundred six thousand, five hundred thirteen".