18285376 has 14 divisors (see below), whose sum is σ = 36285170. Its totient is φ = 9142656.

The previous prime is 18285367. The next prime is 18285383. The reversal of 18285376 is 67358281.

It can be written as a sum of positive squares in only one way, i.e., 17438976 + 846400 = 4176^2 + 920^2 .

It is a super-2 number, since 2×18285376² = 668709950922752, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142791 + ... + 142918.

Almost surely, 2^18285376 is an apocalyptic number.

18285376 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18285376 is a deficient number, since it is larger than the sum of its proper divisors (17999794).

18285376 is an equidigital number, since it uses as much as digits as its factorization.

18285376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285721 (or 285711 counting only the distinct ones).

The product of its digits is 80640, while the sum is 40.

The square root of 18285376 is about 4276.1403157520. The cubic root of 18285376 is about 263.4518777634.

It can be divided in two parts, 182 and 85376, that added together give a palindrome (85558).

The spelling of 18285376 in words is "eighteen million, two hundred eighty-five thousand, three hundred seventy-six".