16331072 has 14 divisors (see below), whose sum is σ = 32407098. Its totient is φ = 8165504.

The previous prime is 16331071. The next prime is 16331083. The reversal of 16331072 is 27013361.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 13719616 + 2611456 = 3704^2 + 1616^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16331071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127523 + ... + 127650.

Almost surely, 2^16331072 is an apocalyptic number.

It is an amenable number.

16331072 is a deficient number, since it is larger than the sum of its proper divisors (16076026).

16331072 is an equidigital number, since it uses as much as digits as its factorization.

16331072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255185 (or 255175 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 16331072 is about 4041.1721071986. The cubic root of 16331072 is about 253.7103773056.

The spelling of 16331072 in words is "sixteen million, three hundred thirty-one thousand, seventy-two".