374638631 has 4 divisors (see below), whose sum is σ = 375017664. Its totient is φ = 374259600.

The previous prime is 374638591. The next prime is 374638679. The reversal of 374638631 is 136836473.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 136836473 = 233 ⋅587281.

It is a cyclic number.

It is not a de Polignac number, because 374638631 - 2⁶ = 374638567 is a prime.

It is a super-2 number, since 2×374638631² = 280708207675108322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (374638031) 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, 188030 + ... + 190011.

It is an arithmetic number, because the mean of its divisors is an integer number (93754416).

Almost surely, 2^374638631 is an apocalyptic number.

374638631 is a deficient number, since it is larger than the sum of its proper divisors (379033).

374638631 is an equidigital number, since it uses as much as digits as its factorization.

374638631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379032.

The product of its digits is 217728, while the sum is 41.

The square root of 374638631 is about 19355.5839746570. The cubic root of 374638631 is about 720.8930732480.

The spelling of 374638631 in words is "three hundred seventy-four million, six hundred thirty-eight thousand, six hundred thirty-one".