16940542 has 8 divisors (see below), whose sum is σ = 25479000. Its totient is φ = 8447544.

The previous prime is 16940531. The next prime is 16940543. The reversal of 16940542 is 24504961.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16940543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10417 + ... + 11932.

It is an arithmetic number, because the mean of its divisors is an integer number (3184875).

Almost surely, 2^16940542 is an apocalyptic number.

16940542 is a deficient number, since it is larger than the sum of its proper divisors (8538458).

16940542 is a wasteful number, since it uses less digits than its factorization.

16940542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22730.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 16940542 is about 4115.8889683761. Note that the first 3 decimals coincide. The cubic root of 16940542 is about 256.8280377994.

The spelling of 16940542 in words is "sixteen million, nine hundred forty thousand, five hundred forty-two".