18248895 has 80 divisors (see below), whose sum is σ = 38541888. Its totient is φ = 8087040.

The previous prime is 18248891. The next prime is 18248903. The reversal of 18248895 is 59884281.

It is a happy number.

18248895 is a `hidden beast` number, since 1 + 82 + 488 + 95 = 666.

It is not a de Polignac number, because 18248895 - 2² = 18248891 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 18248895.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18248891) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 116157 + ... + 116313.

Almost surely, 2^18248895 is an apocalyptic number.

18248895 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18248895 is an abundant number, since it is smaller than the sum of its proper divisors (20292993).

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

18248895 is a wasteful number, since it uses less digits than its factorization.

18248895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222 (or 213 counting only the distinct ones).

The product of its digits is 184320, while the sum is 45.

The square root of 18248895 is about 4271.8725402334. The cubic root of 18248895 is about 263.2765575759.

The spelling of 18248895 in words is "eighteen million, two hundred forty-eight thousand, eight hundred ninety-five".