1444138532 has 12 divisors (see below), whose sum is σ = 2534404236. Its totient is φ = 720023040.

The previous prime is 1444138517. The next prime is 1444138547. The reversal of 1444138532 is 2358314441.

It is an interprime number because it is at equal distance from previous prime (1444138517) and next prime (1444138547).

It can be written as a sum of positive squares in 2 ways, for example, as 205520896 + 1238617636 = 14336^2 + 35194^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1444138492 and 1444138501.

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, 509969 + ... + 512792.

It is an arithmetic number, because the mean of its divisors is an integer number (211200353).

Almost surely, 2^1444138532 is an apocalyptic number.

It is an amenable number.

1444138532 is a deficient number, since it is larger than the sum of its proper divisors (1090265704).

1444138532 is a wasteful number, since it uses less digits than its factorization.

1444138532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023118 (or 1023116 counting only the distinct ones).

The product of its digits is 46080, while the sum is 35.

The square root of 1444138532 is about 38001.8227457579. The cubic root of 1444138532 is about 1130.3240076437.

The spelling of 1444138532 in words is "one billion, four hundred forty-four million, one hundred thirty-eight thousand, five hundred thirty-two".