1444242456 has 48 divisors (see below), whose sum is σ = 4046374800. Its totient is φ = 464812992.

The previous prime is 1444242433. The next prime is 1444242469. The reversal of 1444242456 is 6542424441.

1444242456 is a `hidden beast` number, since 144 + 42 + 424 + 56 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1444242456.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 343756 + ... + 347931.

It is an arithmetic number, because the mean of its divisors is an integer number (84299475).

Almost surely, 2^1444242456 is an apocalyptic number.

It is an amenable number.

1444242456 is an abundant number, since it is smaller than the sum of its proper divisors (2602132344).

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

1444242456 is a wasteful number, since it uses less digits than its factorization.

1444242456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691728 (or 691721 counting only the distinct ones).

The product of its digits is 122880, while the sum is 36.

The square root of 1444242456 is about 38003.1900766238. The cubic root of 1444242456 is about 1130.3511206876.

Adding to 1444242456 its reverse (6542424441), we get a palindrome (7986666897).

The spelling of 1444242456 in words is "one billion, four hundred forty-four million, two hundred forty-two thousand, four hundred fifty-six".