18248685 has 64 divisors (see below), whose sum is σ = 37255680. Its totient is φ = 7418880.

The previous prime is 18248669. The next prime is 18248687. The reversal of 18248685 is 58684281.

It is not a de Polignac number, because 18248685 - 2⁴ = 18248669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18248687) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 39355 + ... + 39815.

It is an arithmetic number, because the mean of its divisors is an integer number (582120).

Almost surely, 2^18248685 is an apocalyptic number.

18248685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18248685 is an abundant number, since it is smaller than the sum of its proper divisors (19006995).

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

18248685 is a wasteful number, since it uses less digits than its factorization.

18248685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518.

The product of its digits is 122880, while the sum is 42.

The square root of 18248685 is about 4271.8479607776. The cubic root of 18248685 is about 263.2755476830.

The spelling of 18248685 in words is "eighteen million, two hundred forty-eight thousand, six hundred eighty-five".