1324404442 has 4 divisors (see below), whose sum is σ = 1986606666. Its totient is φ = 662202220.

The previous prime is 1324404379. The next prime is 1324404449. The reversal of 1324404442 is 2444044231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 907877161 + 416527281 = 30131^2 + 20409^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1324404442.

It is not an unprimeable number, because it can be changed into a prime (1324404449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331101109 + ... + 331101112.

Almost surely, 2^1324404442 is an apocalyptic number.

1324404442 is a deficient number, since it is larger than the sum of its proper divisors (662202224).

1324404442 is an equidigital number, since it uses as much as digits as its factorization.

1324404442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662202223.

The product of its (nonzero) digits is 12288, while the sum is 28.

The square root of 1324404442 is about 36392.3679086701. The cubic root of 1324404442 is about 1098.1800323683.

Adding to 1324404442 its reverse (2444044231), we get a palindrome (3768448673).

The spelling of 1324404442 in words is "one billion, three hundred twenty-four million, four hundred four thousand, four hundred forty-two".