16456842 has 12 divisors (see below), whose sum is σ = 35656530. Its totient is φ = 5485608.

The previous prime is 16456837. The next prime is 16456849. The reversal of 16456842 is 24865461.

16456842 is a `hidden beast` number, since 1 + 645 + 6 + 8 + 4 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 13995081 + 2461761 = 3741^2 + 1569^2 .

It is a super-2 number, since 2×16456842² = 541655297225928, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 16456797 and 16456806.

It is not an unprimeable number, because it can be changed into a prime (16456849) 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 5 ways as a sum of consecutive naturals, for example, 457117 + ... + 457152.

Almost surely, 2^16456842 is an apocalyptic number.

16456842 is an abundant number, since it is smaller than the sum of its proper divisors (19199688).

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

16456842 is a wasteful number, since it uses less digits than its factorization.

16456842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 914277 (or 914274 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 16456842 is about 4056.7033413845. The cubic root of 16456842 is about 254.3600098824.

The spelling of 16456842 in words is "sixteen million, four hundred fifty-six thousand, eight hundred forty-two".