1323225442 has 64 divisors (see below), whose sum is σ = 2516583168. Its totient is φ = 506880000.

The previous prime is 1323225439. The next prime is 1323225467. The reversal of 1323225442 is 2445223231.

It is a self number, because there is not a number n which added to its sum of digits gives 1323225442.

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 31 ways as a sum of consecutive naturals, for example, 3748338 + ... + 3748690.

It is an arithmetic number, because the mean of its divisors is an integer number (39321612).

Almost surely, 2^1323225442 is an apocalyptic number.

1323225442 is a deficient number, since it is larger than the sum of its proper divisors (1193357726).

1323225442 is a wasteful number, since it uses less digits than its factorization.

1323225442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715.

The product of its digits is 11520, while the sum is 28.

The square root of 1323225442 is about 36376.1658507325. The cubic root of 1323225442 is about 1097.8540648092.

Adding to 1323225442 its reverse (2445223231), we get a palindrome (3768448673).

The spelling of 1323225442 in words is "one billion, three hundred twenty-three million, two hundred twenty-five thousand, four hundred forty-two".