16117394 has 16 divisors (see below), whose sum is σ = 25839000. Its totient is φ = 7513344.

The previous prime is 16117379. The next prime is 16117397. The reversal of 16117394 is 49371161.

It can be written as a sum of positive squares in 4 ways, for example, as 12924025 + 3193369 = 3595^2 + 1787^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 16117394.

It is not an unprimeable number, because it can be changed into a prime (16117397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1532 + ... + 5880.

Almost surely, 2^16117394 is an apocalyptic number.

16117394 is a deficient number, since it is larger than the sum of its proper divisors (9721606).

16117394 is a wasteful number, since it uses less digits than its factorization.

16117394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4477.

The product of its digits is 4536, while the sum is 32.

The square root of 16117394 is about 4014.6474315935. The cubic root of 16117394 is about 252.5989887342.

The spelling of 16117394 in words is "sixteen million, one hundred seventeen thousand, three hundred ninety-four".