16373409 has 8 divisors (see below), whose sum is σ = 23510592. Its totient is φ = 10075920.

The previous prime is 16373407. The next prime is 16373443. The reversal of 16373409 is 90437361.

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

It is not a de Polignac number, because 16373409 - 2¹ = 16373407 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 16373409.

It is not an unprimeable number, because it can be changed into a prime (16373407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209877 + ... + 209954.

It is an arithmetic number, because the mean of its divisors is an integer number (2938824).

Almost surely, 2^16373409 is an apocalyptic number.

It is an amenable number.

16373409 is a deficient number, since it is larger than the sum of its proper divisors (7137183).

16373409 is a wasteful number, since it uses less digits than its factorization.

16373409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419847.

The product of its (nonzero) digits is 13608, while the sum is 33.

The square root of 16373409 is about 4046.4069246679. The cubic root of 16373409 is about 253.9294294203.

The spelling of 16373409 in words is "sixteen million, three hundred seventy-three thousand, four hundred nine".