18022485 has 32 divisors (see below), whose sum is σ = 32135040. Its totient is φ = 8563968.

The previous prime is 18022481. The next prime is 18022489. The reversal of 18022485 is 58422081.

It is an interprime number because it is at equal distance from previous prime (18022481) and next prime (18022489).

It is not a de Polignac number, because 18022485 - 2² = 18022481 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18022481) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4062 + ... + 7248.

It is an arithmetic number, because the mean of its divisors is an integer number (1004220).

Almost surely, 2^18022485 is an apocalyptic number.

18022485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18022485 is a deficient number, since it is larger than the sum of its proper divisors (14112555).

18022485 is a wasteful number, since it uses less digits than its factorization.

18022485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3237.

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 18022485 is about 4245.2897427620. The cubic root of 18022485 is about 262.1832187738.

The spelling of 18022485 in words is "eighteen million, twenty-two thousand, four hundred eighty-five".