18979962 has 16 divisors (see below), whose sum is σ = 38387520. Its totient is φ = 6255392.

The previous prime is 18979957. The next prime is 18979999. The reversal of 18979962 is 26997981.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17238 + ... + 18305.

It is an arithmetic number, because the mean of its divisors is an integer number (2399220).

Almost surely, 2^18979962 is an apocalyptic number.

18979962 is an abundant number, since it is smaller than the sum of its proper divisors (19407558).

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

18979962 is a wasteful number, since it uses less digits than its factorization.

18979962 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35637.

The product of its digits is 489888, while the sum is 51.

The square root of 18979962 is about 4356.5998209613. The cubic root of 18979962 is about 266.7463258545.

The spelling of 18979962 in words is "eighteen million, nine hundred seventy-nine thousand, nine hundred sixty-two".