16455642 has 16 divisors (see below), whose sum is σ = 37612992. Its totient is φ = 4701600.

The previous prime is 16455623. The next prime is 16455661. The reversal of 16455642 is 24655461.

It is an interprime number because it is at equal distance from previous prime (16455623) and next prime (16455661).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195859 + ... + 195942.

It is an arithmetic number, because the mean of its divisors is an integer number (2350812).

Almost surely, 2^16455642 is an apocalyptic number.

16455642 is an abundant number, since it is smaller than the sum of its proper divisors (21157350).

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

16455642 is a wasteful number, since it uses less digits than its factorization.

16455642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391813.

The product of its digits is 28800, while the sum is 33.

The square root of 16455642 is about 4056.5554353417. Note that the first 3 decimals coincide. The cubic root of 16455642 is about 254.3538272577.

The spelling of 16455642 in words is "sixteen million, four hundred fifty-five thousand, six hundred forty-two".