16994395 has 8 divisors (see below), whose sum is σ = 22247280. Its totient is φ = 12359520.

The previous prime is 16994387. The next prime is 16994413. The reversal of 16994395 is 59349961.

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

It is not a de Polignac number, because 16994395 - 2³ = 16994387 is a prime.

It is a super-2 number, since 2×16994395² = 577618922832050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154440 + ... + 154549.

It is an arithmetic number, because the mean of its divisors is an integer number (2780910).

Almost surely, 2^16994395 is an apocalyptic number.

16994395 is a deficient number, since it is larger than the sum of its proper divisors (5252885).

16994395 is a wasteful number, since it uses less digits than its factorization.

16994395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309005.

The product of its digits is 262440, while the sum is 46.

The square root of 16994395 is about 4122.4258634935. The cubic root of 16994395 is about 257.0998970707.

The spelling of 16994395 in words is "sixteen million, nine hundred ninety-four thousand, three hundred ninety-five".