1444535412 has 24 divisors (see below), whose sum is σ = 3442298496. Its totient is φ = 471266688.

The previous prime is 1444535369. The next prime is 1444535423. The reversal of 1444535412 is 2145354441.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1280053 + ... + 1281180.

It is an arithmetic number, because the mean of its divisors is an integer number (143429104).

Almost surely, 2^1444535412 is an apocalyptic number.

1444535412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1444535412 is an abundant number, since it is smaller than the sum of its proper divisors (1997763084).

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

1444535412 is a wasteful number, since it uses less digits than its factorization.

1444535412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2561287 (or 2561285 counting only the distinct ones).

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

The square root of 1444535412 is about 38007.0442418244. The cubic root of 1444535412 is about 1130.4275438565.

Adding to 1444535412 its reverse (2145354441), we get a palindrome (3589889853).

The spelling of 1444535412 in words is "one billion, four hundred forty-four million, five hundred thirty-five thousand, four hundred twelve".