22479349 has 4 divisors (see below), whose sum is σ = 23456736. Its totient is φ = 21501964.

The previous prime is 22479341. The next prime is 22479361. The reversal of 22479349 is 94397422.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 22479349 - 2³ = 22479341 is a prime.

It is a super-2 number, since 2×22479349² = 1010642262927602, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22479341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 488659 + ... + 488704.

It is an arithmetic number, because the mean of its divisors is an integer number (5864184).

Almost surely, 2^22479349 is an apocalyptic number.

It is an amenable number.

22479349 is a deficient number, since it is larger than the sum of its proper divisors (977387).

22479349 is an equidigital number, since it uses as much as digits as its factorization.

22479349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 977386.

The product of its digits is 108864, while the sum is 40.

The square root of 22479349 is about 4741.2391840109. The cubic root of 22479349 is about 282.2244118487.

The spelling of 22479349 in words is "twenty-two million, four hundred seventy-nine thousand, three hundred forty-nine".