375417220369 has 3 divisors (see below), whose sum is σ = 375417833083. Its totient is φ = 375416607656.

The previous prime is 375417220337. The next prime is 375417220469. The reversal of 375417220369 is 963022714573.

The square root of 375417220369 is 612713.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 16031358225 + 359385862144 = 126615^2 + 599488^2 .

It is not a de Polignac number, because 375417220369 - 2⁵ = 375417220337 is a prime.

It is a super-2 number, since 2×375417220369² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (375417220469) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 306357 + ... + 919069.

Almost surely, 2^375417220369 is an apocalyptic number.

375417220369 is the 612713-rd square number.

375417220369 is the 306357-th centered octagonal number.

It is an amenable number.

375417220369 is a deficient number, since it is larger than the sum of its proper divisors (612714).

375417220369 is an frugal number, since it uses more digits than its factorization.

375417220369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1225426 (or 612713 counting only the distinct ones).

The product of its (nonzero) digits is 1905120, while the sum is 49.

Multiplying 375417220369 by its sum of digits (49), we get a square (18395443798081 = 4288991²).

The spelling of 375417220369 in words is "three hundred seventy-five billion, four hundred seventeen million, two hundred twenty thousand, three hundred sixty-nine".