18288995 has 8 divisors (see below), whose sum is σ = 22703760. Its totient is φ = 14126560.

The previous prime is 18288983. The next prime is 18289003. The reversal of 18288995 is 59988281.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18288995 - 2¹⁶ = 18223459 is a prime.

It is a super-2 number, since 2×18288995² = 668974676220050, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62921 + ... + 63210.

It is an arithmetic number, because the mean of its divisors is an integer number (2837970).

Almost surely, 2^18288995 is an apocalyptic number.

18288995 is a deficient number, since it is larger than the sum of its proper divisors (4414765).

18288995 is a wasteful number, since it uses less digits than its factorization.

18288995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126165.

The product of its digits is 414720, while the sum is 50.

The square root of 18288995 is about 4276.5634567957. The cubic root of 18288995 is about 263.4692572155.

The spelling of 18288995 in words is "eighteen million, two hundred eighty-eight thousand, nine hundred ninety-five".