16823642 has 16 divisors (see below), whose sum is σ = 29149632. Its totient is φ = 7197120.

The previous prime is 16823629. The next prime is 16823657. The reversal of 16823642 is 24632861.

It is a junction number, because it is equal to n+sod(n) for n = 16823599 and 16823608.

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, 22118 + ... + 22865.

It is an arithmetic number, because the mean of its divisors is an integer number (1821852).

Almost surely, 2^16823642 is an apocalyptic number.

16823642 is a deficient number, since it is larger than the sum of its proper divisors (12325990).

16823642 is a wasteful number, since it uses less digits than its factorization.

16823642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45013.

The product of its digits is 13824, while the sum is 32.

The square root of 16823642 is about 4101.6633211418. The cubic root of 16823642 is about 256.2359173700.

The spelling of 16823642 in words is "sixteen million, eight hundred twenty-three thousand, six hundred forty-two".