16345456 has 20 divisors (see below), whose sum is σ = 33046992. Its totient is φ = 7817216.

The previous prime is 16345451. The next prime is 16345481. The reversal of 16345456 is 65454361.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16345451) 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, 21841 + ... + 22576.

Almost surely, 2^16345456 is an apocalyptic number.

16345456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16345456 is an abundant number, since it is smaller than the sum of its proper divisors (16701536).

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

16345456 is a wasteful number, since it uses less digits than its factorization.

16345456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44448 (or 44442 counting only the distinct ones).

The product of its digits is 43200, while the sum is 34.

The square root of 16345456 is about 4042.9513971850. The cubic root of 16345456 is about 253.7848427003.

The spelling of 16345456 in words is "sixteen million, three hundred forty-five thousand, four hundred fifty-six".