17980992 has 168 divisors, whose sum is σ = 57058560. Its totient is φ = 5391360.

The previous prime is 17980981. The next prime is 17980993. The reversal of 17980992 is 29908971.

It is not an unprimeable number, because it can be changed into a prime (17980993) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 339238 + ... + 339290.

Almost surely, 2^17980992 is an apocalyptic number.

17980992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 17980992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28529280).

17980992 is an abundant number, since it is smaller than the sum of its proper divisors (39077568).

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

17980992 is a wasteful number, since it uses less digits than its factorization.

17980992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121 (or 108 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 45.

The square root of 17980992 is about 4240.3999811339. The cubic root of 17980992 is about 261.9818568327.

The spelling of 17980992 in words is "seventeen million, nine hundred eighty thousand, nine hundred ninety-two".