16790194 has 4 divisors (see below), whose sum is σ = 25185294. Its totient is φ = 8395096.

The previous prime is 16790177. The next prime is 16790201. The reversal of 16790194 is 49109761.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49109761 = 23 ⋅2135207.

It can be written as a sum of positive squares in only one way, i.e., 8922169 + 7868025 = 2987^2 + 2805^2 .

It is a super-2 number, since 2×16790194² = 563821229115272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4197547 + ... + 4197550.

Almost surely, 2^16790194 is an apocalyptic number.

16790194 is a deficient number, since it is larger than the sum of its proper divisors (8395100).

16790194 is an equidigital number, since it uses as much as digits as its factorization.

16790194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8395099.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 16790194 is about 4097.5839222644. The cubic root of 16790194 is about 256.0659925083.

The spelling of 16790194 in words is "sixteen million, seven hundred ninety thousand, one hundred ninety-four".