1425403444 has 12 divisors (see below), whose sum is σ = 2495152800. Its totient is φ = 712502648.

The previous prime is 1425403433. The next prime is 1425403453. The reversal of 1425403444 is 4443045241.

It is a super-2 number, since 2×1425403444² = 4063549956334122272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33034 + ... + 62785.

It is an arithmetic number, because the mean of its divisors is an integer number (207929400).

Almost surely, 2^1425403444 is an apocalyptic number.

It is an amenable number.

1425403444 is a deficient number, since it is larger than the sum of its proper divisors (1069749356).

1425403444 is a wasteful number, since it uses less digits than its factorization.

1425403444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99542 (or 99540 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 31.

The square root of 1425403444 is about 37754.5155445014. The cubic root of 1425403444 is about 1125.4147459110.

Adding to 1425403444 its reverse (4443045241), we get a palindrome (5868448685).

The spelling of 1425403444 in words is "one billion, four hundred twenty-five million, four hundred three thousand, four hundred forty-four".