18750744 has 64 divisors (see below), whose sum is σ = 53222400. Its totient is φ = 6113952.

The previous prime is 18750713. The next prime is 18750757. The reversal of 18750744 is 44705781.

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

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

It is a junction number, because it is equal to n+sod(n) for n = 18750699 and 18750708.

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, 9229 + ... + 11075.

It is an arithmetic number, because the mean of its divisors is an integer number (831600).

Almost surely, 2^18750744 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18750744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26611200).

18750744 is an abundant number, since it is smaller than the sum of its proper divisors (34471656).

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

18750744 is a wasteful number, since it uses less digits than its factorization.

18750744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1909 (or 1899 counting only the distinct ones).

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

The square root of 18750744 is about 4330.2129277900. The cubic root of 18750744 is about 265.6681561068.

The spelling of 18750744 in words is "eighteen million, seven hundred fifty thousand, seven hundred forty-four".