18276090 has 64 divisors (see below), whose sum is σ = 51874560. Its totient is φ = 4032000.

The previous prime is 18276077. The next prime is 18276101. The reversal of 18276090 is 9067281.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4590 + ... + 7590.

It is an arithmetic number, because the mean of its divisors is an integer number (810540).

Almost surely, 2^18276090 is an apocalyptic number.

18276090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 18276090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25937280).

18276090 is an abundant number, since it is smaller than the sum of its proper divisors (33598470).

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

18276090 is a wasteful number, since it uses less digits than its factorization.

18276090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3047.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 18276090 is about 4275.0543856190. The cubic root of 18276090 is about 263.4072732958.

The spelling of 18276090 in words is "eighteen million, two hundred seventy-six thousand, ninety".