374918921 has 8 divisors (see below), whose sum is σ = 404001864. Its totient is φ = 345870720.

The previous prime is 374918917. The next prime is 374918923. The reversal of 374918921 is 129819473.

It can be written as a sum of positive squares in 4 ways, for example, as 5856400 + 369062521 = 2420^2 + 19211^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 374918921 - 2² = 374918917 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (374918923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16445 + ... + 31941.

It is an arithmetic number, because the mean of its divisors is an integer number (50500233).

Almost surely, 2^374918921 is an apocalyptic number.

It is an amenable number.

374918921 is a deficient number, since it is larger than the sum of its proper divisors (29082943).

374918921 is a wasteful number, since it uses less digits than its factorization.

374918921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17371.

The product of its digits is 108864, while the sum is 44.

The square root of 374918921 is about 19362.8231670901. The cubic root of 374918921 is about 721.0728097841.

The spelling of 374918921 in words is "three hundred seventy-four million, nine hundred eighteen thousand, nine hundred twenty-one".