18242560 has 88 divisors (see below), whose sum is σ = 50110560. Its totient is φ = 6242304.

The previous prime is 18242557. The next prime is 18242561. The reversal of 18242560 is 6524281.

It is a hoax number, since the sum of its digits (28) 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 (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18242561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35586 + ... + 36094.

Almost surely, 2^18242560 is an apocalyptic number.

18242560 is a gapful number since it is divisible by the number (10) 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 18242560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25055280).

18242560 is an abundant number, since it is smaller than the sum of its proper divisors (31868000).

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

18242560 is an equidigital number, since it uses as much as digits as its factorization.

18242560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541 (or 523 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 18242560 is about 4271.1309977569. The cubic root of 18242560 is about 263.2460890640.

The spelling of 18242560 in words is "eighteen million, two hundred forty-two thousand, five hundred sixty".