1440111345 has 16 divisors (see below), whose sum is σ = 2304840960. Its totient is φ = 767838464.

The previous prime is 1440111329. The next prime is 1440111359. The reversal of 1440111345 is 5431110441.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1440111345 - 2⁴ = 1440111329 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49417 + ... + 72953.

It is an arithmetic number, because the mean of its divisors is an integer number (144052560).

Almost surely, 2^1440111345 is an apocalyptic number.

1440111345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1440111345 is a deficient number, since it is larger than the sum of its proper divisors (864729615).

1440111345 is a wasteful number, since it uses less digits than its factorization.

1440111345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27624.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 1440111345 is about 37948.7989928535. The cubic root of 1440111345 is about 1129.2723393673.

Adding to 1440111345 its reverse (5431110441), we get a palindrome (6871221786).

The spelling of 1440111345 in words is "one billion, four hundred forty million, one hundred eleven thousand, three hundred forty-five".