1440111346 has 16 divisors (see below), whose sum is σ = 2281052160. Its totient is φ = 680000400.

The previous prime is 1440111329. The next prime is 1440111359. The reversal of 1440111346 is 6431110441.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1440111346.

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, 47730 + ... + 71821.

It is an arithmetic number, because the mean of its divisors is an integer number (142565760).

Almost surely, 2^1440111346 is an apocalyptic number.

1440111346 is a deficient number, since it is larger than the sum of its proper divisors (840940814).

1440111346 is a wasteful number, since it uses less digits than its factorization.

1440111346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119889.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 1440111346 is about 37948.7990060292. The cubic root of 1440111346 is about 1129.2723396287.

Adding to 1440111346 its reverse (6431110441), we get a palindrome (7871221787).

The spelling of 1440111346 in words is "one billion, four hundred forty million, one hundred eleven thousand, three hundred forty-six".