18012792 has 144 divisors (see below), whose sum is σ = 56696760. Its totient is φ = 4752384.

The previous prime is 18012763. The next prime is 18012793. The reversal of 18012792 is 29721081.

It is a super-3 number, since 3×18012792³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18012793) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 339838 + ... + 339890.

Almost surely, 2^18012792 is an apocalyptic number.

18012792 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 18012792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28348380).

18012792 is an abundant number, since it is smaller than the sum of its proper divisors (38683968).

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

18012792 is a wasteful number, since it uses less digits than its factorization.

18012792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110 (or 82 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 18012792 is about 4244.1479710302. The cubic root of 18012792 is about 262.1362071717.

The spelling of 18012792 in words is "eighteen million, twelve thousand, seven hundred ninety-two".