1224431402 has 8 divisors (see below), whose sum is σ = 1933312800. Its totient is φ = 579993804.

The previous prime is 1224431393. The next prime is 1224431413. The reversal of 1224431402 is 2041344221.

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 16110902 + ... + 16110977.

It is an arithmetic number, because the mean of its divisors is an integer number (241664100).

Almost surely, 2^1224431402 is an apocalyptic number.

1224431402 is a deficient number, since it is larger than the sum of its proper divisors (708881398).

1224431402 is a wasteful number, since it uses less digits than its factorization.

1224431402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32221900.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 1224431402 is about 34991.8762286334. The cubic root of 1224431402 is about 1069.8219058993.

Adding to 1224431402 its reverse (2041344221), we get a palindrome (3265775623).

The spelling of 1224431402 in words is "one billion, two hundred twenty-four million, four hundred thirty-one thousand, four hundred two".