18679470 has 32 divisors (see below), whose sum is σ = 47191680. Its totient is φ = 4718880.

The previous prime is 18679457. The next prime is 18679483. The reversal of 18679470 is 7497681.

It is an interprime number because it is at equal distance from previous prime (18679457) and next prime (18679483).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15816 + ... + 16955.

It is an arithmetic number, because the mean of its divisors is an integer number (1474740).

Almost surely, 2^18679470 is an apocalyptic number.

18679470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18679470 is an abundant number, since it is smaller than the sum of its proper divisors (28512210).

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

18679470 is a wasteful number, since it uses less digits than its factorization.

18679470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32800.

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 18679470 is about 4321.9752428722. The cubic root of 18679470 is about 265.3311157081.

The spelling of 18679470 in words is "eighteen million, six hundred seventy-nine thousand, four hundred seventy".