16344994 has 4 divisors (see below), whose sum is σ = 24517494. Its totient is φ = 8172496.

The previous prime is 16344989. The next prime is 16345003. The reversal of 16344994 is 49944361.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 9517225 + 6827769 = 3085^2 + 2613^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4086247 + ... + 4086250.

Almost surely, 2^16344994 is an apocalyptic number.

16344994 is a deficient number, since it is larger than the sum of its proper divisors (8172500).

16344994 is an equidigital number, since it uses as much as digits as its factorization.

16344994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8172499.

The product of its digits is 93312, while the sum is 40.

The square root of 16344994 is about 4042.8942603041. The cubic root of 16344994 is about 253.7824516239.

The spelling of 16344994 in words is "sixteen million, three hundred forty-four thousand, nine hundred ninety-four".