18875946 has 16 divisors (see below), whose sum is σ = 37944000. Its totient is φ = 6259968.

The previous prime is 18875917. The next prime is 18875951. The reversal of 18875946 is 64957881.

It is a junction number, because it is equal to n+sod(n) for n = 18875895 and 18875904.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6711 + ... + 9098.

It is an arithmetic number, because the mean of its divisors is an integer number (2371500).

Almost surely, 2^18875946 is an apocalyptic number.

18875946 is an abundant number, since it is smaller than the sum of its proper divisors (19068054).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18875946 is a wasteful number, since it uses less digits than its factorization.

18875946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16013.

The product of its digits is 483840, while the sum is 48.

The square root of 18875946 is about 4344.6456702475. The cubic root of 18875946 is about 266.2581491477.

It can be divided in two parts, 188759 and 46, that added together give a triangular number (188805 = T₆₁₄).

The spelling of 18875946 in words is "eighteen million, eight hundred seventy-five thousand, nine hundred forty-six".