16394845 has 4 divisors (see below), whose sum is σ = 19673820. Its totient is φ = 13115872.

The previous prime is 16394839. The next prime is 16394863. The reversal of 16394845 is 54849361.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7086244 + 9308601 = 2662^2 + 3051^2 .

It is a cyclic number.

It is not a de Polignac number, because 16394845 - 2⁵ = 16394813 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16394798 and 16394807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1639480 + ... + 1639489.

It is an arithmetic number, because the mean of its divisors is an integer number (4918455).

Almost surely, 2^16394845 is an apocalyptic number.

It is an amenable number.

16394845 is a deficient number, since it is larger than the sum of its proper divisors (3278975).

16394845 is an equidigital number, since it uses as much as digits as its factorization.

16394845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3278974.

The product of its digits is 103680, while the sum is 40.

The square root of 16394845 is about 4049.0548279815. The cubic root of 16394845 is about 254.0401955524.

The spelling of 16394845 in words is "sixteen million, three hundred ninety-four thousand, eight hundred forty-five".