1224319879 has 4 divisors (see below), whose sum is σ = 1236441960. Its totient is φ = 1212197800.

The previous prime is 1224319871. The next prime is 1224319897. The reversal of 1224319879 is 9789134221.

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 1224319879 - 2³ = 1224319871 is a prime.

It is a super-2 number, since 2×1224319879² = 2997918332229149282, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224319871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6060889 + ... + 6061090.

It is an arithmetic number, because the mean of its divisors is an integer number (309110490).

Almost surely, 2^1224319879 is an apocalyptic number.

1224319879 is a deficient number, since it is larger than the sum of its proper divisors (12122081).

1224319879 is a wasteful number, since it uses less digits than its factorization.

1224319879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12122080.

The product of its digits is 217728, while the sum is 46.

The square root of 1224319879 is about 34990.2826367550. The cubic root of 1224319879 is about 1069.7894245994.

The spelling of 1224319879 in words is "one billion, two hundred twenty-four million, three hundred nineteen thousand, eight hundred seventy-nine".