1321441044 has 48 divisors (see below), whose sum is σ = 3844194816. Its totient is φ = 343231200.

The previous prime is 1321441019. The next prime is 1321441063. The reversal of 1321441044 is 4401441231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 714142 + ... + 715989.

It is an arithmetic number, because the mean of its divisors is an integer number (80087392).

Almost surely, 2^1321441044 is an apocalyptic number.

1321441044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1321441044 is an abundant number, since it is smaller than the sum of its proper divisors (2522753772).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1321441044 is a wasteful number, since it uses less digits than its factorization.

1321441044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1430156 (or 1430154 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 1321441044 is about 36351.6305549008. The cubic root of 1321441044 is about 1097.3603495323.

Adding to 1321441044 its reverse (4401441231), we get a palindrome (5722882275).

The spelling of 1321441044 in words is "one billion, three hundred twenty-one million, four hundred forty-one thousand, forty-four".