16003394 has 8 divisors (see below), whose sum is σ = 26187408. Its totient is φ = 7274260.

The previous prime is 16003391. The next prime is 16003441. The reversal of 16003394 is 49330061.

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

It is a super-2 number, since 2×16003394² = 512217239038472, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16003391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 363692 + ... + 363735.

It is an arithmetic number, because the mean of its divisors is an integer number (3273426).

Almost surely, 2^16003394 is an apocalyptic number.

16003394 is a deficient number, since it is larger than the sum of its proper divisors (10184014).

16003394 is a wasteful number, since it uses less digits than its factorization.

16003394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727440.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 16003394 is about 4000.4242275039. The cubic root of 16003394 is about 252.0020261028.

It can be divided in two parts, 1600 and 3394, that added together give a palindrome (4994).

The spelling of 16003394 in words is "sixteen million, three thousand, three hundred ninety-four".