1244401320 has 32 divisors (see below), whose sum is σ = 3733204320. Its totient is φ = 331840320.

The previous prime is 1244401303. The next prime is 1244401351. The reversal of 1244401320 is 231044421.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5184886 + ... + 5185125.

It is an arithmetic number, because the mean of its divisors is an integer number (116662635).

Almost surely, 2^1244401320 is an apocalyptic number.

1244401320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1244401320 is an abundant number, since it is smaller than the sum of its proper divisors (2488803000).

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

1244401320 is a wasteful number, since it uses less digits than its factorization.

1244401320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10370025 (or 10370021 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1244401320 is about 35276.0729106855. The cubic root of 1244401320 is about 1075.6066725251.

Adding to 1244401320 its reverse (231044421), we get a palindrome (1475445741).

The spelling of 1244401320 in words is "one billion, two hundred forty-four million, four hundred one thousand, three hundred twenty".