17996020 has 48 divisors (see below), whose sum is σ = 43481088. Its totient is φ = 6128640.

The previous prime is 17995997. The next prime is 17996063. The reversal of 17996020 is 2069971.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 26404 + ... + 27076.

It is an arithmetic number, because the mean of its divisors is an integer number (905856).

Almost surely, 2^17996020 is an apocalyptic number.

17996020 is a gapful number since it is divisible by the number (10) 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 17996020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21740544).

17996020 is an abundant number, since it is smaller than the sum of its proper divisors (25485068).

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

17996020 is a wasteful number, since it uses less digits than its factorization.

17996020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880 (or 878 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 17996020 is about 4242.1716136903. The cubic root of 17996020 is about 262.0548221623.

The spelling of 17996020 in words is "seventeen million, nine hundred ninety-six thousand, twenty".