374915891 has 12 divisors (see below), whose sum is σ = 442750896. Its totient is φ = 310984560.

The previous prime is 374915887. The next prime is 374915911. The reversal of 374915891 is 198519473.

It is not a de Polignac number, because 374915891 - 2² = 374915887 is a prime.

It is not an unprimeable number, because it can be changed into a prime (374915831) 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, 21140 + ... + 34593.

It is an arithmetic number, because the mean of its divisors is an integer number (36895908).

Almost surely, 2^374915891 is an apocalyptic number.

374915891 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

374915891 is a deficient number, since it is larger than the sum of its proper divisors (67835005).

374915891 is an equidigital number, since it uses as much as digits as its factorization.

374915891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55802 (or 55771 counting only the distinct ones).

The product of its digits is 272160, while the sum is 47.

The square root of 374915891 is about 19362.7449242095. The cubic root of 374915891 is about 721.0708672695.

The spelling of 374915891 in words is "three hundred seventy-four million, nine hundred fifteen thousand, eight hundred ninety-one".