18742752 has 120 divisors (see below), whose sum is σ = 63057456. Its totient is φ = 5349888.

The previous prime is 18742741. The next prime is 18742819. The reversal of 18742752 is 25724781.

18742752 is a `hidden beast` number, since 187 + 427 + 52 = 666.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 17628 + ... + 18660.

Almost surely, 2^18742752 is an apocalyptic number.

18742752 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 18742752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31528728).

18742752 is an abundant number, since it is smaller than the sum of its proper divisors (44314704).

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

18742752 is a wasteful number, since it uses less digits than its factorization.

18742752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1062 (or 1045 counting only the distinct ones).

The product of its digits is 31360, while the sum is 36.

The square root of 18742752 is about 4329.2900110757. The cubic root of 18742752 is about 265.6304061091.

The spelling of 18742752 in words is "eighteen million, seven hundred forty-two thousand, seven hundred fifty-two".