1427531444 has 12 divisors (see below), whose sum is σ = 2512137600. Its totient is φ = 709777848.

The previous prime is 1427531437. The next prime is 1427531489. The reversal of 1427531444 is 4441357241.

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, 996164 + ... + 997595.

It is an arithmetic number, because the mean of its divisors is an integer number (209344800).

Almost surely, 2^1427531444 is an apocalyptic number.

It is an amenable number.

1427531444 is a deficient number, since it is larger than the sum of its proper divisors (1084606156).

1427531444 is a wasteful number, since it uses less digits than its factorization.

1427531444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1993942 (or 1993940 counting only the distinct ones).

The product of its digits is 53760, while the sum is 35.

The square root of 1427531444 is about 37782.6870934294. The cubic root of 1427531444 is about 1125.9745153328.

Adding to 1427531444 its reverse (4441357241), we get a palindrome (5868888685).

The spelling of 1427531444 in words is "one billion, four hundred twenty-seven million, five hundred thirty-one thousand, four hundred forty-four".