1444155432 has 16 divisors (see below), whose sum is σ = 3610388640. Its totient is φ = 481385136.

The previous prime is 1444155421. The next prime is 1444155451. The reversal of 1444155432 is 2345514441.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1444155393 and 1444155402.

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, 30086548 + ... + 30086595.

It is an arithmetic number, because the mean of its divisors is an integer number (225649290).

Almost surely, 2^1444155432 is an apocalyptic number.

1444155432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1444155432 is an abundant number, since it is smaller than the sum of its proper divisors (2166233208).

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

1444155432 is a wasteful number, since it uses less digits than its factorization.

1444155432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60173152 (or 60173148 counting only the distinct ones).

The product of its digits is 38400, while the sum is 33.

The square root of 1444155432 is about 38002.0451028626. The cubic root of 1444155432 is about 1130.3284168239.

Adding to 1444155432 its reverse (2345514441), we get a palindrome (3789669873).

The spelling of 1444155432 in words is "one billion, four hundred forty-four million, one hundred fifty-five thousand, four hundred thirty-two".