16805742 has 8 divisors (see below), whose sum is σ = 33611496. Its totient is φ = 5601912.

The previous prime is 16805731. The next prime is 16805759. The reversal of 16805742 is 24750861.

It is a sphenic number, since it is the product of 3 distinct primes.

16805742 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1400473 + ... + 1400484.

It is an arithmetic number, because the mean of its divisors is an integer number (4201437).

Almost surely, 2^16805742 is an apocalyptic number.

16805742 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

16805742 is a wasteful number, since it uses less digits than its factorization.

16805742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2800962.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 16805742 is about 4099.4806988203. The cubic root of 16805742 is about 256.1450085848.

The spelling of 16805742 in words is "sixteen million, eight hundred five thousand, seven hundred forty-two".