16345694 has 4 divisors (see below), whose sum is σ = 24518544. Its totient is φ = 8172846.

The previous prime is 16345669. The next prime is 16345697. The reversal of 16345694 is 49654361.

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

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16345697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4086422 + ... + 4086425.

It is an arithmetic number, because the mean of its divisors is an integer number (6129636).

Almost surely, 2^16345694 is an apocalyptic number.

16345694 is a deficient number, since it is larger than the sum of its proper divisors (8172850).

16345694 is an equidigital number, since it uses as much as digits as its factorization.

16345694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8172849.

The product of its digits is 77760, while the sum is 38.

The square root of 16345694 is about 4042.9808310206. The cubic root of 16345694 is about 253.7860744493.

The spelling of 16345694 in words is "sixteen million, three hundred forty-five thousand, six hundred ninety-four".