16908742 has 4 divisors (see below), whose sum is σ = 25363116. Its totient is φ = 8454370.

The previous prime is 16908739. The next prime is 16908763. The reversal of 16908742 is 24780961.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4227184 + ... + 4227187.

It is an arithmetic number, because the mean of its divisors is an integer number (6340779).

Almost surely, 2^16908742 is an apocalyptic number.

16908742 is a deficient number, since it is larger than the sum of its proper divisors (8454374).

16908742 is an equidigital number, since it uses as much as digits as its factorization.

16908742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8454373.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 16908742 is about 4112.0240758050. The cubic root of 16908742 is about 256.6672352455.

The spelling of 16908742 in words is "sixteen million, nine hundred eight thousand, seven hundred forty-two".