16331244 has 24 divisors (see below), whose sum is σ = 38324160. Its totient is φ = 5412624.

The previous prime is 16331221. The next prime is 16331251. The reversal of 16331244 is 44213361.

It is a nude number because it is divisible by every one of its digits.

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, 1654 + ... + 5949.

It is an arithmetic number, because the mean of its divisors is an integer number (1596840).

Almost surely, 2^16331244 is an apocalyptic number.

It is an amenable number.

16331244 is an abundant number, since it is smaller than the sum of its proper divisors (21992916).

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

16331244 is a wasteful number, since it uses less digits than its factorization.

16331244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7789 (or 7787 counting only the distinct ones).

The product of its digits is 1728, while the sum is 24.

The square root of 16331244 is about 4041.1933880971. The cubic root of 16331244 is about 253.7112680010.

The spelling of 16331244 in words is "sixteen million, three hundred thirty-one thousand, two hundred forty-four".