22920479 has 4 divisors (see below), whose sum is σ = 24126840. Its totient is φ = 21714120.

The previous prime is 22920463. The next prime is 22920481. The reversal of 22920479 is 97402922.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22920479 - 2⁴ = 22920463 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 (22920409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 603152 + ... + 603189.

It is an arithmetic number, because the mean of its divisors is an integer number (6031710).

Almost surely, 2^22920479 is an apocalyptic number.

22920479 is a deficient number, since it is larger than the sum of its proper divisors (1206361).

22920479 is a wasteful number, since it uses less digits than its factorization.

22920479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1206360.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 22920479 is about 4787.5337074531. The cubic root of 22920479 is about 284.0585700467.

The spelling of 22920479 in words is "twenty-two million, nine hundred twenty thousand, four hundred seventy-nine".