1425331444 has 12 divisors (see below), whose sum is σ = 2524382784. Its totient is φ = 704079224.

The previous prime is 1425331433. The next prime is 1425331463. The reversal of 1425331444 is 4441335241.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2146252 + ... + 2146915.

It is an arithmetic number, because the mean of its divisors is an integer number (210365232).

Almost surely, 2^1425331444 is an apocalyptic number.

It is an amenable number.

1425331444 is a deficient number, since it is larger than the sum of its proper divisors (1099051340).

1425331444 is a wasteful number, since it uses less digits than its factorization.

1425331444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4293254 (or 4293252 counting only the distinct ones).

The product of its digits is 23040, while the sum is 31.

The square root of 1425331444 is about 37753.5620041341. The cubic root of 1425331444 is about 1125.3957966031.

Adding to 1425331444 its reverse (4441335241), we get a palindrome (5866666685).

The spelling of 1425331444 in words is "one billion, four hundred twenty-five million, three hundred thirty-one thousand, four hundred forty-four".