16244400 has 60 divisors (see below), whose sum is σ = 52040072. Its totient is φ = 4331520.

The previous prime is 16244399. The next prime is 16244407. The reversal of 16244400 is 444261.

It is a tau number, because it is divible by the number of its divisors (60).

It is not an unprimeable number, because it can be changed into a prime (16244407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5569 + ... + 7968.

Almost surely, 2^16244400 is an apocalyptic number.

16244400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16244400 is an abundant number, since it is smaller than the sum of its proper divisors (35795672).

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

16244400 is a wasteful number, since it uses less digits than its factorization.

16244400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13558 (or 13547 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 16244400 is about 4030.4342197833. The cubic root of 16244400 is about 253.2607517523.

Adding to 16244400 its reverse (444261), we get a palindrome (16688661).

The spelling of 16244400 in words is "sixteen million, two hundred forty-four thousand, four hundred".