16200640 has 28 divisors (see below), whose sum is σ = 38578536. Its totient is φ = 6480128.

The previous prime is 16200629. The next prime is 16200641. The reversal of 16200640 is 4600261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16200641) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 24994 + ... + 25633.

Almost surely, 2^16200640 is an apocalyptic number.

16200640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16200640 is an abundant number, since it is smaller than the sum of its proper divisors (22377896).

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

16200640 is an equidigital number, since it uses as much as digits as its factorization.

16200640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50644 (or 50634 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 16200640 is about 4025.0018633536. The cubic root of 16200640 is about 253.0331316263.

The spelling of 16200640 in words is "sixteen million, two hundred thousand, six hundred forty".