374388891 has 16 divisors (see below), whose sum is σ = 515819520. Its totient is φ = 241292160.

The previous prime is 374388881. The next prime is 374388923. The reversal of 374388891 is 198883473.

It is not a de Polignac number, because 374388891 - 2¹⁴ = 374372507 is a prime.

It is not an unprimeable number, because it can be changed into a prime (374388851) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142195 + ... + 144803.

It is an arithmetic number, because the mean of its divisors is an integer number (32238720).

Almost surely, 2^374388891 is an apocalyptic number.

374388891 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

374388891 is a deficient number, since it is larger than the sum of its proper divisors (141430629).

374388891 is a wasteful number, since it uses less digits than its factorization.

374388891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4186.

The product of its digits is 1161216, while the sum is 51.

The square root of 374388891 is about 19349.1315308982. The cubic root of 374388891 is about 720.7328514227.

The spelling of 374388891 in words is "three hundred seventy-four million, three hundred eighty-eight thousand, eight hundred ninety-one".