18813962 has 16 divisors (see below), whose sum is σ = 29812992. Its totient is φ = 8890560.

The previous prime is 18813961. The next prime is 18813983. The reversal of 18813962 is 26931881.

It is a super-2 number, since 2×18813962² = 707930332274888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18813961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 863 + ... + 6194.

It is an arithmetic number, because the mean of its divisors is an integer number (1863312).

Almost surely, 2^18813962 is an apocalyptic number.

18813962 is a deficient number, since it is larger than the sum of its proper divisors (10999030).

18813962 is a wasteful number, since it uses less digits than its factorization.

18813962 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7133.

The product of its digits is 20736, while the sum is 38.

The square root of 18813962 is about 4337.5064265082. The cubic root of 18813962 is about 265.9663872955.

The spelling of 18813962 in words is "eighteen million, eight hundred thirteen thousand, nine hundred sixty-two".