18525276 has 144 divisors (see below), whose sum is σ = 60173568. Its totient is φ = 4665600.

The previous prime is 18525239. The next prime is 18525293. The reversal of 18525276 is 67252581.

It is a happy number.

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

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 18525276.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 113571 + ... + 113733.

It is an arithmetic number, because the mean of its divisors is an integer number (417872).

Almost surely, 2^18525276 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 18525276, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30086784).

18525276 is an abundant number, since it is smaller than the sum of its proper divisors (41648292).

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

18525276 is a wasteful number, since it uses less digits than its factorization.

18525276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232 (or 227 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 18525276 is about 4304.0999059037. The cubic root of 18525276 is about 264.5990185809.

The spelling of 18525276 in words is "eighteen million, five hundred twenty-five thousand, two hundred seventy-six".