1101440445 has 64 divisors (see below), whose sum is σ = 2174238720. Its totient is φ = 464986368.

The previous prime is 1101440437. The next prime is 1101440449. The reversal of 1101440445 is 5440441011.

It is not a de Polignac number, because 1101440445 - 2³ = 1101440437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101440449) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 62172 + ... + 77898.

It is an arithmetic number, because the mean of its divisors is an integer number (33972480).

Almost surely, 2^1101440445 is an apocalyptic number.

1101440445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1101440445 is a deficient number, since it is larger than the sum of its proper divisors (1072798275).

1101440445 is a wasteful number, since it uses less digits than its factorization.

1101440445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15794.

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 1101440445 is about 33187.9563245464. The cubic root of 1101440445 is about 1032.7305076244.

Adding to 1101440445 its reverse (5440441011), we get a palindrome (6541881456).

The spelling of 1101440445 in words is "one billion, one hundred one million, four hundred forty thousand, four hundred forty-five".