18360756 has 60 divisors (see below), whose sum is σ = 48838020. Its totient is φ = 6013440.

The previous prime is 18360733. The next prime is 18360763. The reversal of 18360756 is 65706381.

It can be written as a sum of positive squares in 2 ways, for example, as 467856 + 17892900 = 684^2 + 4230^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 18360756.

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, 19300 + ... + 20228.

It is an arithmetic number, because the mean of its divisors is an integer number (813967).

Almost surely, 2^18360756 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 18360756, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24419010).

18360756 is an abundant number, since it is smaller than the sum of its proper divisors (30477264).

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

18360756 is a wasteful number, since it uses less digits than its factorization.

18360756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006 (or 995 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 18360756 is about 4284.9452738629. The cubic root of 18360756 is about 263.8134011983.

The spelling of 18360756 in words is "eighteen million, three hundred sixty thousand, seven hundred fifty-six".