16492389 has 4 divisors (see below), whose sum is σ = 21989856. Its totient is φ = 10994924.

The previous prime is 16492367. The next prime is 16492409. The reversal of 16492389 is 98329461.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16492389 - 2¹³ = 16484197 is a prime.

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 16492389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16492309) 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, 2748729 + ... + 2748734.

It is an arithmetic number, because the mean of its divisors is an integer number (5497464).

Almost surely, 2^16492389 is an apocalyptic number.

It is an amenable number.

16492389 is a deficient number, since it is larger than the sum of its proper divisors (5497467).

16492389 is an equidigital number, since it uses as much as digits as its factorization.

16492389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5497466.

The product of its digits is 93312, while the sum is 42.

The square root of 16492389 is about 4061.0822449195. The cubic root of 16492389 is about 254.5430185257.

The spelling of 16492389 in words is "sixteen million, four hundred ninety-two thousand, three hundred eighty-nine".