18019752 has 64 divisors (see below), whose sum is σ = 48576000. Its totient is φ = 5552064.

The previous prime is 18019739. The next prime is 18019789. The reversal of 18019752 is 25791081.

It is a super-2 number, since 2×18019752² = 649422924283008, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19149 + ... + 20067.

It is an arithmetic number, because the mean of its divisors is an integer number (759000).

Almost surely, 2^18019752 is an apocalyptic number.

18019752 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 18019752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24288000).

18019752 is an abundant number, since it is smaller than the sum of its proper divisors (30556248).

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

18019752 is a wasteful number, since it uses less digits than its factorization.

18019752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990 (or 986 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 33.

The square root of 18019752 is about 4244.9678444012. The cubic root of 18019752 is about 262.1699652748.

The spelling of 18019752 in words is "eighteen million, nineteen thousand, seven hundred fifty-two".