22449013 has 4 divisors (see below), whose sum is σ = 23630560. Its totient is φ = 21267468.

The previous prime is 22448981. The next prime is 22449041. The reversal of 22449013 is 31094422.

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 22449013 - 2⁵ = 22448981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22449073) 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, 590745 + ... + 590782.

It is an arithmetic number, because the mean of its divisors is an integer number (5907640).

Almost surely, 2^22449013 is an apocalyptic number.

It is an amenable number.

22449013 is a deficient number, since it is larger than the sum of its proper divisors (1181547).

22449013 is a wasteful number, since it uses less digits than its factorization.

22449013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1181546.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 22449013 is about 4738.0389403212. The cubic root of 22449013 is about 282.0974002533.

The spelling of 22449013 in words is "twenty-two million, four hundred forty-nine thousand, thirteen".