16889742 has 16 divisors (see below), whose sum is σ = 37532880. Its totient is φ = 5629896.

The previous prime is 16889731. The next prime is 16889809. The reversal of 16889742 is 24798861.

It is a congruent number.

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, 156333 + ... + 156440.

It is an arithmetic number, because the mean of its divisors is an integer number (2345805).

Almost surely, 2^16889742 is an apocalyptic number.

16889742 is an abundant number, since it is smaller than the sum of its proper divisors (20643138).

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

16889742 is a wasteful number, since it uses less digits than its factorization.

16889742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312784 (or 312778 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 16889742 is about 4109.7131286746. The cubic root of 16889742 is about 256.5710620112.

The spelling of 16889742 in words is "sixteen million, eight hundred eighty-nine thousand, seven hundred forty-two".