18374463 has 12 divisors (see below), whose sum is σ = 27938040. Its totient is φ = 11604816.

The previous prime is 18374443. The next prime is 18374471. The reversal of 18374463 is 36447381.

It is not a de Polignac number, because 18374463 - 2⁵ = 18374431 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18374443) 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, 53556 + ... + 53897.

It is an arithmetic number, because the mean of its divisors is an integer number (2328170).

Almost surely, 2^18374463 is an apocalyptic number.

18374463 is a deficient number, since it is larger than the sum of its proper divisors (9563577).

18374463 is a wasteful number, since it uses less digits than its factorization.

18374463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107478 (or 107475 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 18374463 is about 4286.5444124609. The cubic root of 18374463 is about 263.8790337684.

The spelling of 18374463 in words is "eighteen million, three hundred seventy-four thousand, four hundred sixty-three".