1444331632 has 10 divisors (see below), whose sum is σ = 2798392568. Its totient is φ = 722165808.

The previous prime is 1444331599. The next prime is 1444331639. The reversal of 1444331632 is 2361334441.

It is a junction number, because it is equal to n+sod(n) for n = 1444331594 and 1444331603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444331639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45135348 + ... + 45135379.

Almost surely, 2^1444331632 is an apocalyptic number.

It is an amenable number.

1444331632 is a deficient number, since it is larger than the sum of its proper divisors (1354060936).

1444331632 is an equidigital number, since it uses as much as digits as its factorization.

1444331632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90270735 (or 90270729 counting only the distinct ones).

The product of its digits is 20736, while the sum is 31.

The square root of 1444331632 is about 38004.3633284390. The cubic root of 1444331632 is about 1130.3743850448.

The spelling of 1444331632 in words is "one billion, four hundred forty-four million, three hundred thirty-one thousand, six hundred thirty-two".