16233440 has 48 divisors (see below), whose sum is σ = 38918880. Its totient is φ = 6397440.

The previous prime is 16233439. The next prime is 16233457. The reversal of 16233440 is 4433261.

It is a happy number.

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, 10646 + ... + 12074.

It is an arithmetic number, because the mean of its divisors is an integer number (810810).

Almost surely, 2^16233440 is an apocalyptic number.

16233440 is a gapful number since it is divisible by the number (10) 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 16233440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19459440).

16233440 is an abundant number, since it is smaller than the sum of its proper divisors (22685440).

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

16233440 is a wasteful number, since it uses less digits than its factorization.

16233440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1515 (or 1507 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 16233440 is about 4029.0743353778. The cubic root of 16233440 is about 253.2037810972.

The spelling of 16233440 in words is "sixteen million, two hundred thirty-three thousand, four hundred forty".