20326449 has 16 divisors (see below), whose sum is σ = 31840704. Its totient is φ = 11371200.

The previous prime is 20326433. The next prime is 20326459. The reversal of 20326449 is 94462302.

It is not a de Polignac number, because 20326449 - 2⁴ = 20326433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20326459) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23262 + ... + 24119.

It is an arithmetic number, because the mean of its divisors is an integer number (1990044).

Almost surely, 2^20326449 is an apocalyptic number.

It is an amenable number.

20326449 is a deficient number, since it is larger than the sum of its proper divisors (11514255).

20326449 is a wasteful number, since it uses less digits than its factorization.

20326449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47408.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 20326449 is about 4508.4863313534. The cubic root of 20326449 is about 272.9106632507.

The spelling of 20326449 in words is "twenty million, three hundred twenty-six thousand, four hundred forty-nine".