18278096 has 40 divisors (see below), whose sum is σ = 37449984. Its totient is φ = 8628480.

The previous prime is 18278081. The next prime is 18278131. The reversal of 18278096 is 69087281.

It is a congruent number.

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, 20900 + ... + 21756.

Almost surely, 2^18278096 is an apocalyptic number.

18278096 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 18278096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18724992).

18278096 is an abundant number, since it is smaller than the sum of its proper divisors (19171888).

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

18278096 is a wasteful number, since it uses less digits than its factorization.

18278096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 939 (or 933 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 18278096 is about 4275.2889960797. The cubic root of 18278096 is about 263.4169102160.

The spelling of 18278096 in words is "eighteen million, two hundred seventy-eight thousand, ninety-six".