1440222424 has 16 divisors (see below), whose sum is σ = 2751369120. Its totient is φ = 706524000.

The previous prime is 1440222379. The next prime is 1440222431. The reversal of 1440222424 is 4242220441.

It is a congruent 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, 1697952 + ... + 1698799.

It is an arithmetic number, because the mean of its divisors is an integer number (171960570).

Almost surely, 2^1440222424 is an apocalyptic number.

It is an amenable number.

1440222424 is a deficient number, since it is larger than the sum of its proper divisors (1311146696).

1440222424 is a wasteful number, since it uses less digits than its factorization.

1440222424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3396810 (or 3396806 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 25.

The square root of 1440222424 is about 37950.2625023859. The cubic root of 1440222424 is about 1129.3013730522.

Adding to 1440222424 its reverse (4242220441), we get a palindrome (5682442865).

The spelling of 1440222424 in words is "one billion, four hundred forty million, two hundred twenty-two thousand, four hundred twenty-four".