22470949 has 4 divisors (see below), whose sum is σ = 22500940. Its totient is φ = 22440960.

The previous prime is 22470941. The next prime is 22470953. The reversal of 22470949 is 94907422.

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 3678724 + 18792225 = 1918^2 + 4335^2 .

It is a cyclic number.

It is not a de Polignac number, because 22470949 - 2³ = 22470941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22470941) 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, 13842 + ... + 15379.

It is an arithmetic number, because the mean of its divisors is an integer number (5625235).

Almost surely, 2^22470949 is an apocalyptic number.

It is an amenable number.

22470949 is a deficient number, since it is larger than the sum of its proper divisors (29991).

22470949 is an equidigital number, since it uses as much as digits as its factorization.

22470949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29990.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 22470949 is about 4740.3532568786. The cubic root of 22470949 is about 282.1892539443.

The spelling of 22470949 in words is "twenty-two million, four hundred seventy thousand, nine hundred forty-nine".