17990112 has 96 divisors (see below), whose sum is σ = 56851200. Its totient is φ = 4866048.

The previous prime is 17990107. The next prime is 17990113. The reversal of 17990112 is 21109971.

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 17990112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17990113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12064 + ... + 13472.

It is an arithmetic number, because the mean of its divisors is an integer number (592200).

Almost surely, 2^17990112 is an apocalyptic number.

17990112 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 17990112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28425600).

17990112 is an abundant number, since it is smaller than the sum of its proper divisors (38861088).

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

17990112 is a wasteful number, since it uses less digits than its factorization.

17990112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1448 (or 1440 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 30.

The square root of 17990112 is about 4241.4752150637. The cubic root of 17990112 is about 262.0261419441.

The spelling of 17990112 in words is "seventeen million, nine hundred ninety thousand, one hundred twelve".