22279407 has 8 divisors (see below), whose sum is σ = 29795376. Its totient is φ = 14808192.

The previous prime is 22279373. The next prime is 22279409. The reversal of 22279407 is 70497222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22279407 - 2⁸ = 22279151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22279409) 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 7 ways as a sum of consecutive naturals, for example, 10008 + ... + 12029.

It is an arithmetic number, because the mean of its divisors is an integer number (3724422).

Almost surely, 2^22279407 is an apocalyptic number.

22279407 is a deficient number, since it is larger than the sum of its proper divisors (7515969).

22279407 is a wasteful number, since it uses less digits than its factorization.

22279407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22377.

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 22279407 is about 4720.1066725234. The cubic root of 22279407 is about 281.3851727520.

The spelling of 22279407 in words is "twenty-two million, two hundred seventy-nine thousand, four hundred seven".