18053376 has 72 divisors (see below), whose sum is σ = 52440864. Its totient is φ = 5468160.

The previous prime is 18053359. The next prime is 18053381. The reversal of 18053376 is 67335081.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7380 + ... + 9516.

Almost surely, 2^18053376 is an apocalyptic number.

18053376 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18053376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26220432).

18053376 is an abundant number, since it is smaller than the sum of its proper divisors (34387488).

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

18053376 is a wasteful number, since it uses less digits than its factorization.

18053376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2167 (or 2153 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 18053376 is about 4248.9264526466. The cubic root of 18053376 is about 262.3329295167.

The spelling of 18053376 in words is "eighteen million, fifty-three thousand, three hundred seventy-six".