18038496 has 96 divisors (see below), whose sum is σ = 57335040. Its totient is φ = 4847616.

The previous prime is 18038453. The next prime is 18038533. The reversal of 18038496 is 69483081.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10635 + ... + 12213.

It is an arithmetic number, because the mean of its divisors is an integer number (597240).

Almost surely, 2^18038496 is an apocalyptic number.

18038496 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 18038496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28667520).

18038496 is an abundant number, since it is smaller than the sum of its proper divisors (39296544).

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

18038496 is a wasteful number, since it uses less digits than its factorization.

18038496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1616 (or 1608 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 18038496 is about 4247.1750611436. The cubic root of 18038496 is about 262.2608361321.

The spelling of 18038496 in words is "eighteen million, thirty-eight thousand, four hundred ninety-six".