1330400444 has 12 divisors (see below), whose sum is σ = 2450737800. Its totient is φ = 630189648.

The previous prime is 1330400419. The next prime is 1330400447. The reversal of 1330400444 is 4440040331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1330400447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8752559 + ... + 8752710.

It is an arithmetic number, because the mean of its divisors is an integer number (204228150).

Almost surely, 2^1330400444 is an apocalyptic number.

It is an amenable number.

1330400444 is a deficient number, since it is larger than the sum of its proper divisors (1120337356).

1330400444 is a wasteful number, since it uses less digits than its factorization.

1330400444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17505292 (or 17505290 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 1330400444 is about 36474.6548167354. The cubic root of 1330400444 is about 1099.8348082515.

Adding to 1330400444 its reverse (4440040331), we get a palindrome (5770440775).

The spelling of 1330400444 in words is "one billion, three hundred thirty million, four hundred thousand, four hundred forty-four".