18995976 has 48 divisors (see below), whose sum is σ = 53688960. Its totient is φ = 6056160.

The previous prime is 18995971. The next prime is 18995983. The reversal of 18995976 is 67959981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18995971) 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, 4080 + ... + 7391.

It is an arithmetic number, because the mean of its divisors is an integer number (1118520).

Almost surely, 2^18995976 is an apocalyptic number.

It is an amenable number.

18995976 is an abundant number, since it is smaller than the sum of its proper divisors (34692984).

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

18995976 is a wasteful number, since it uses less digits than its factorization.

18995976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11506 (or 11499 counting only the distinct ones).

The product of its digits is 1224720, while the sum is 54.

The square root of 18995976 is about 4358.4373346419. The cubic root of 18995976 is about 266.8213255628.

It can be divided in two parts, 1899 and 5976, that added together give a triangular number (7875 = T₁₂₅).

The spelling of 18995976 in words is "eighteen million, nine hundred ninety-five thousand, nine hundred seventy-six".