16994402 has 8 divisors (see below), whose sum is σ = 25621596. Its totient is φ = 8453872.

The previous prime is 16994387. The next prime is 16994413. The reversal of 16994402 is 20449961.

It can be written as a sum of positive squares in 2 ways, for example, as 16491721 + 502681 = 4061^2 + 709^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21173 + ... + 21960.

Almost surely, 2^16994402 is an apocalyptic number.

16994402 is a deficient number, since it is larger than the sum of its proper divisors (8627194).

16994402 is a wasteful number, since it uses less digits than its factorization.

16994402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43332.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 16994402 is about 4122.4267125081. The cubic root of 16994402 is about 257.0999323705.

The spelling of 16994402 in words is "sixteen million, nine hundred ninety-four thousand, four hundred two".