375643331 has 4 divisors (see below), whose sum is σ = 429306672. Its totient is φ = 321979992.

The previous prime is 375643273. The next prime is 375643349. The reversal of 375643331 is 133346573.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 133346573 = 3407 ⋅39139.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-375643331 is a prime.

It is a super-2 number, since 2×375643331² = 282215824249551122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 375643291 and 375643300.

It is not an unprimeable number, because it can be changed into a prime (375643361) 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, 26831660 + ... + 26831673.

It is an arithmetic number, because the mean of its divisors is an integer number (107326668).

Almost surely, 2^375643331 is an apocalyptic number.

375643331 is a deficient number, since it is larger than the sum of its proper divisors (53663341).

375643331 is an equidigital number, since it uses as much as digits as its factorization.

375643331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53663340.

The product of its digits is 68040, while the sum is 35.

The square root of 375643331 is about 19381.5203480016. The cubic root of 375643331 is about 721.5369246098.

The spelling of 375643331 in words is "three hundred seventy-five million, six hundred forty-three thousand, three hundred thirty-one".