1224291879 has 12 divisors (see below), whose sum is σ = 1769343576. Its totient is φ = 815769072.

The previous prime is 1224291851. The next prime is 1224291881. The reversal of 1224291879 is 9781924221.

1224291879 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1224291879 - 2⁷ = 1224291751 is a prime.

It is a super-3 number, since 3×1224291879³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224291889) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16717 + ... + 52230.

It is an arithmetic number, because the mean of its divisors is an integer number (147445298).

Almost surely, 2^1224291879 is an apocalyptic number.

1224291879 is a deficient number, since it is larger than the sum of its proper divisors (545051697).

1224291879 is a wasteful number, since it uses less digits than its factorization.

1224291879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70926 (or 70923 counting only the distinct ones).

The product of its digits is 145152, while the sum is 45.

The square root of 1224291879 is about 34989.8825233810. The cubic root of 1224291879 is about 1069.7812692328.

The spelling of 1224291879 in words is "one billion, two hundred twenty-four million, two hundred ninety-one thousand, eight hundred seventy-nine".