18997962 has 16 divisors (see below), whose sum is σ = 38619552. Its totient is φ = 6228720.

The previous prime is 18997919. The next prime is 18997969. The reversal of 18997962 is 26979981.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (18997969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25588 + ... + 26319.

It is an arithmetic number, because the mean of its divisors is an integer number (2413722).

Almost surely, 2^18997962 is an apocalyptic number.

18997962 is an abundant number, since it is smaller than the sum of its proper divisors (19621590).

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

18997962 is a wasteful number, since it uses less digits than its factorization.

18997962 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51973.

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

The square root of 18997962 is about 4358.6651626387. The cubic root of 18997962 is about 266.8306238248.

The spelling of 18997962 in words is "eighteen million, nine hundred ninety-seven thousand, nine hundred sixty-two".