18076572 has 72 divisors (see below), whose sum is σ = 48218352. Its totient is φ = 5702400.

The previous prime is 18076567. The next prime is 18076579. The reversal of 18076572 is 27567081.

18076572 is a `hidden beast` number, since 1 + 80 + 7 + 6 + 572 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18076579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54447 + ... + 54777.

Almost surely, 2^18076572 is an apocalyptic number.

18076572 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 18076572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24109176).

18076572 is an abundant number, since it is smaller than the sum of its proper divisors (30141780).

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

18076572 is a wasteful number, since it uses less digits than its factorization.

18076572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419 (or 414 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 18076572 is about 4251.6552070929. The cubic root of 18076572 is about 262.4452348337.

The spelling of 18076572 in words is "eighteen million, seventy-six thousand, five hundred seventy-two".