16944938 has 4 divisors (see below), whose sum is σ = 25417410. Its totient is φ = 8472468.

The previous prime is 16944923. The next prime is 16944943. The reversal of 16944938 is 83944961.

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

It can be written as a sum of positive squares in only one way, i.e., 15389929 + 1555009 = 3923^2 + 1247^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4236233 + ... + 4236236.

Almost surely, 2^16944938 is an apocalyptic number.

16944938 is a deficient number, since it is larger than the sum of its proper divisors (8472472).

16944938 is an equidigital number, since it uses as much as digits as its factorization.

16944938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8472471.

The product of its digits is 186624, while the sum is 44.

The square root of 16944938 is about 4116.4229617472. The cubic root of 16944938 is about 256.8502511464.

The spelling of 16944938 in words is "sixteen million, nine hundred forty-four thousand, nine hundred thirty-eight".