18276944 has 40 divisors (see below), whose sum is σ = 41247360. Its totient is φ = 7682688.

The previous prime is 18276941. The next prime is 18276953. The reversal of 18276944 is 44967281.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18276941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4397 + ... + 7475.

It is an arithmetic number, because the mean of its divisors is an integer number (1031184).

Almost surely, 2^18276944 is an apocalyptic number.

18276944 is a gapful number since it is divisible by the number (14) 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 18276944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20623680).

18276944 is an abundant number, since it is smaller than the sum of its proper divisors (22970416).

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

18276944 is a wasteful number, since it uses less digits than its factorization.

18276944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3147 (or 3141 counting only the distinct ones).

The product of its digits is 96768, while the sum is 41.

The square root of 18276944 is about 4275.1542662224. The cubic root of 18276944 is about 263.4113760390.

The spelling of 18276944 in words is "eighteen million, two hundred seventy-six thousand, nine hundred forty-four".