13279222 has 16 divisors (see below), whose sum is σ = 22431744. Its totient is φ = 5841000.

The previous prime is 13279219. The next prime is 13279223. The reversal of 13279222 is 22297231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13279223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9054 + ... + 10417.

It is an arithmetic number, because the mean of its divisors is an integer number (1401984).

Almost surely, 2^13279222 is an apocalyptic number.

13279222 is a deficient number, since it is larger than the sum of its proper divisors (9152522).

13279222 is a wasteful number, since it uses less digits than its factorization.

13279222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19515.

The product of its digits is 3024, while the sum is 28.

The square root of 13279222 is about 3644.0666843514. The cubic root of 13279222 is about 236.8050049732.

Subtracting 13279222 from its reverse (22297231), we obtain a square (9018009 = 3003²).

The spelling of 13279222 in words is "thirteen million, two hundred seventy-nine thousand, two hundred twenty-two".