1440444412 has 24 divisors (see below), whose sum is σ = 2751864192. Its totient is φ = 654289200.

The previous prime is 1440444409. The next prime is 1440444427. The reversal of 1440444412 is 2144440441.

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, 56673 + ... + 78055.

It is an arithmetic number, because the mean of its divisors is an integer number (114661008).

Almost surely, 2^1440444412 is an apocalyptic number.

It is an amenable number.

1440444412 is a deficient number, since it is larger than the sum of its proper divisors (1311419780).

1440444412 is a wasteful number, since it uses less digits than its factorization.

1440444412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22929 (or 22927 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 28.

The square root of 1440444412 is about 37953.1871125470. The cubic root of 1440444412 is about 1129.3593915152.

Adding to 1440444412 its reverse (2144440441), we get a palindrome (3584884853).

The spelling of 1440444412 in words is "one billion, four hundred forty million, four hundred forty-four thousand, four hundred twelve".