22261407 has 16 divisors (see below), whose sum is σ = 35708160. Its totient is φ = 12051072.

The previous prime is 22261391. The next prime is 22261417. The reversal of 22261407 is 70416222.

It is not a de Polignac number, because 22261407 - 2⁴ = 22261391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22261417) 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, 27498 + ... + 28295.

It is an arithmetic number, because the mean of its divisors is an integer number (2231760).

Almost surely, 2^22261407 is an apocalyptic number.

22261407 is a deficient number, since it is larger than the sum of its proper divisors (13446753).

22261407 is a wasteful number, since it uses less digits than its factorization.

22261407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55822.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 22261407 is about 4718.1995506761. The cubic root of 22261407 is about 281.3093733416.

Adding to 22261407 its reverse (70416222), we get a palindrome (92677629).

The spelling of 22261407 in words is "twenty-two million, two hundred sixty-one thousand, four hundred seven".