18679914 has 24 divisors (see below), whose sum is σ = 44152992. Its totient is φ = 5660520.

The previous prime is 18679909. The next prime is 18679919. The reversal of 18679914 is 41997681.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (18679909) and next prime (18679919).

It is a self number, because there is not a number n which added to its sum of digits gives 18679914.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18679919) 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, 46974 + ... + 47369.

It is an arithmetic number, because the mean of its divisors is an integer number (1839708).

Almost surely, 2^18679914 is an apocalyptic number.

18679914 is an abundant number, since it is smaller than the sum of its proper divisors (25473078).

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

18679914 is a wasteful number, since it uses less digits than its factorization.

18679914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94362 (or 94359 counting only the distinct ones).

The product of its digits is 108864, while the sum is 45.

The square root of 18679914 is about 4322.0266079699. The cubic root of 18679914 is about 265.3332179462. Note that the first 3 decimals are identical.

It can be divided in two parts, 1867 and 9914, that added together give a triangular number (11781 = T₁₅₃).

The spelling of 18679914 in words is "eighteen million, six hundred seventy-nine thousand, nine hundred fourteen".