16993942 has 32 divisors (see below), whose sum is σ = 31737600. Its totient is φ = 6658848.

The previous prime is 16993939. The next prime is 16993943. The reversal of 16993942 is 24939961.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16993943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6613 + ... + 8815.

It is an arithmetic number, because the mean of its divisors is an integer number (991800).

Almost surely, 2^16993942 is an apocalyptic number.

16993942 is a deficient number, since it is larger than the sum of its proper divisors (14743658).

16993942 is a wasteful number, since it uses less digits than its factorization.

16993942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2260.

The product of its digits is 104976, while the sum is 43.

The square root of 16993942 is about 4122.3709197499. The cubic root of 16993942 is about 257.0976126452.

The spelling of 16993942 in words is "sixteen million, nine hundred ninety-three thousand, nine hundred forty-two".