104021992 has 16 divisors (see below), whose sum is σ = 195263460. Its totient is φ = 51951744.

The previous prime is 104021977. The next prime is 104022011. The reversal of 104021992 is 299120401.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 77334436 + 26687556 = 8794^2 + 5166^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 104021992.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 558 + ... + 14434.

Almost surely, 2^104021992 is an apocalyptic number.

It is an amenable number.

104021992 is a deficient number, since it is larger than the sum of its proper divisors (91241468).

104021992 is a wasteful number, since it uses less digits than its factorization.

104021992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14820 (or 14816 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 104021992 is about 10199.1172167007. The cubic root of 104021992 is about 470.3000829980.

It can be divided in two parts, 1040 and 21992, that added together give a palindrome (23032).

The spelling of 104021992 in words is "one hundred four million, twenty-one thousand, nine hundred ninety-two".