18902016 has 132 divisors (see below), whose sum is σ = 62589072. Its totient is φ = 5382144.

The previous prime is 18901957. The next prime is 18902041. The reversal of 18902016 is 61020981.

It is a zygodrome in base 8.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64366 + ... + 64658.

Almost surely, 2^18902016 is an apocalyptic number.

18902016 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 18902016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31294536).

18902016 is an abundant number, since it is smaller than the sum of its proper divisors (43687056).

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

18902016 is a wasteful number, since it uses less digits than its factorization.

18902016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326 (or 305 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 18902016 is about 4347.6448797021. The cubic root of 18902016 is about 266.3806711621.

Adding to 18902016 its reverse (61020981), we get a palindrome (79922997).

The spelling of 18902016 in words is "eighteen million, nine hundred two thousand, sixteen".