22405479 has 16 divisors (see below), whose sum is σ = 30385152. Its totient is φ = 14683968.

The previous prime is 22405463. The next prime is 22405499. The reversal of 22405479 is 97450422.

It is not a de Polignac number, because 22405479 - 2⁴ = 22405463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22405459) 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, 71427 + ... + 71739.

It is an arithmetic number, because the mean of its divisors is an integer number (1899072).

Almost surely, 2^22405479 is an apocalyptic number.

22405479 is a deficient number, since it is larger than the sum of its proper divisors (7979673).

22405479 is a wasteful number, since it uses less digits than its factorization.

22405479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 22405479 is about 4733.4426161093. The cubic root of 22405479 is about 281.9149308314.

The spelling of 22405479 in words is "twenty-two million, four hundred five thousand, four hundred seventy-nine".