1440044 has 12 divisors (see below), whose sum is σ = 2528568. Its totient is φ = 717600.

The previous prime is 1440037. The next prime is 1440079. The reversal of 1440044 is 4400441.

It is an Ulam number.

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, 1739 + ... + 2429.

It is an arithmetic number, because the mean of its divisors is an integer number (210714).

2^1440044 is an apocalyptic number.

It is an amenable number.

1440044 is a deficient number, since it is larger than the sum of its proper divisors (1088524).

1440044 is a wasteful number, since it uses less digits than its factorization.

1440044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1216 (or 1214 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 1440044 is about 1200.0183331933. The cubic root of 1440044 is about 112.9254736092.

Adding to 1440044 its reverse (4400441), we get a palindrome (5840485).

The spelling of 1440044 in words is "one million, four hundred forty thousand, forty-four".