22439473 has 16 divisors (see below), whose sum is σ = 27437184. Its totient is φ = 17913600.

The previous prime is 22439429. The next prime is 22439489. The reversal of 22439473 is 37493422.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 22439473 - 2¹³ = 22431281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22439773) 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, 11086 + ... + 12952.

It is an arithmetic number, because the mean of its divisors is an integer number (1714824).

Almost surely, 2^22439473 is an apocalyptic number.

It is an amenable number.

22439473 is a deficient number, since it is larger than the sum of its proper divisors (4997711).

22439473 is a wasteful number, since it uses less digits than its factorization.

22439473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1992.

The product of its digits is 36288, while the sum is 34.

The square root of 22439473 is about 4737.0320877106. The cubic root of 22439473 is about 282.0574342719.

The spelling of 22439473 in words is "twenty-two million, four hundred thirty-nine thousand, four hundred seventy-three".