18289962 has 20 divisors (see below), whose sum is σ = 40983426. Its totient is φ = 6096600.

The previous prime is 18289961. The next prime is 18289979. The reversal of 18289962 is 26998281.

It can be written as a sum of positive squares in only one way, i.e., 10556001 + 7733961 = 3249^2 + 2781^2 .

It is a super-2 number, since 2×18289962² = 669045419922888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18289961) 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 9 ways as a sum of consecutive naturals, for example, 56289 + ... + 56612.

Almost surely, 2^18289962 is an apocalyptic number.

18289962 is an abundant number, since it is smaller than the sum of its proper divisors (22693464).

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

18289962 is a wasteful number, since it uses less digits than its factorization.

18289962 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112915 (or 112906 counting only the distinct ones).

The product of its digits is 124416, while the sum is 45.

The square root of 18289962 is about 4276.6765133688. The cubic root of 18289962 is about 263.4739006324.

The spelling of 18289962 in words is "eighteen million, two hundred eighty-nine thousand, nine hundred sixty-two".