1440030444 has 36 divisors (see below), whose sum is σ = 3546235224. Its totient is φ = 454745088.

The previous prime is 1440030421. The next prime is 1440030497. The reversal of 1440030444 is 4440300441.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 161877 + ... + 170540.

It is an arithmetic number, because the mean of its divisors is an integer number (98506534).

Almost surely, 2^1440030444 is an apocalyptic number.

It is an amenable number.

1440030444 is an abundant number, since it is smaller than the sum of its proper divisors (2106204780).

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

1440030444 is a wasteful number, since it uses less digits than its factorization.

1440030444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332462 (or 332441 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 1440030444 is about 37947.7330548216. The cubic root of 1440030444 is about 1129.2511926292.

Adding to 1440030444 its reverse (4440300441), we get a palindrome (5880330885).

It can be divided in two parts, 14400 and 30444, that added together give a palindrome (44844).

The spelling of 1440030444 in words is "one billion, four hundred forty million, thirty thousand, four hundred forty-four".