1440244412 has 12 divisors (see below), whose sum is σ = 2520698040. Its totient is φ = 720044976.

The previous prime is 1440244411. The next prime is 1440244417. The reversal of 1440244412 is 2144420441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1440244411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51518 + ... + 74394.

It is an arithmetic number, because the mean of its divisors is an integer number (210058170).

Almost surely, 2^1440244412 is an apocalyptic number.

It is an amenable number.

1440244412 is a deficient number, since it is larger than the sum of its proper divisors (1080453628).

1440244412 is a wasteful number, since it uses less digits than its factorization.

1440244412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38620 (or 38618 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 26.

The square root of 1440244412 is about 37950.5521962461. The cubic root of 1440244412 is about 1129.3071200701.

Adding to 1440244412 its reverse (2144420441), we get a palindrome (3584664853).

The spelling of 1440244412 in words is "one billion, four hundred forty million, two hundred forty-four thousand, four hundred twelve".