18252750 has 32 divisors (see below), whose sum is σ = 45560736. Its totient is φ = 4867200.

The previous prime is 18252739. The next prime is 18252761. The reversal of 18252750 is 5725281.

It is an interprime number because it is at equal distance from previous prime (18252739) and next prime (18252761).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11419 + ... + 12918.

It is an arithmetic number, because the mean of its divisors is an integer number (1423773).

Almost surely, 2^18252750 is an apocalyptic number.

18252750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18252750 is an abundant number, since it is smaller than the sum of its proper divisors (27307986).

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

18252750 is a wasteful number, since it uses less digits than its factorization.

18252750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24357 (or 24347 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 30.

The square root of 18252750 is about 4272.3237236895. The cubic root of 18252750 is about 263.2950949480.

The spelling of 18252750 in words is "eighteen million, two hundred fifty-two thousand, seven hundred fifty".