16938442 has 8 divisors (see below), whose sum is σ = 26512416. Its totient is φ = 8100972.

The previous prime is 16938437. The next prime is 16938451. The reversal of 16938442 is 24483961.

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 184068 + ... + 184159.

It is an arithmetic number, because the mean of its divisors is an integer number (3314052).

Almost surely, 2^16938442 is an apocalyptic number.

16938442 is a deficient number, since it is larger than the sum of its proper divisors (9573974).

16938442 is a wasteful number, since it uses less digits than its factorization.

16938442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368252.

The product of its digits is 41472, while the sum is 37.

The square root of 16938442 is about 4115.6338515470. The cubic root of 16938442 is about 256.8174249716.

The spelling of 16938442 in words is "sixteen million, nine hundred thirty-eight thousand, four hundred forty-two".