16233540 has 48 divisors (see below), whose sum is σ = 46569600. Its totient is φ = 4222720.

The previous prime is 16233523. The next prime is 16233551. The reversal of 16233540 is 4533261.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 16233540.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 840 + ... + 5759.

It is an arithmetic number, because the mean of its divisors is an integer number (970200).

Almost surely, 2^16233540 is an apocalyptic number.

16233540 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 16233540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23284800).

16233540 is an abundant number, since it is smaller than the sum of its proper divisors (30336060).

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

16233540 is a wasteful number, since it uses less digits than its factorization.

16233540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6652 (or 6650 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 16233540 is about 4029.0867451570. The cubic root of 16233540 is about 253.2043010183.

The spelling of 16233540 in words is "sixteen million, two hundred thirty-three thousand, five hundred forty".