1105172442 has 24 divisors (see below), whose sum is σ = 2612226240. Its totient is φ = 334900680.

The previous prime is 1105172381. The next prime is 1105172443. The reversal of 1105172442 is 2442715011.

It is a super-2 number, since 2×1105172442² = 2442812253112486728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1105172443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2790642 + ... + 2791037.

It is an arithmetic number, because the mean of its divisors is an integer number (108842760).

Almost surely, 2^1105172442 is an apocalyptic number.

1105172442 is an abundant number, since it is smaller than the sum of its proper divisors (1507053798).

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

1105172442 is a wasteful number, since it uses less digits than its factorization.

1105172442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5581698 (or 5581695 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 1105172442 is about 33244.1339487134. The cubic root of 1105172442 is about 1033.8955887273.

Adding to 1105172442 its reverse (2442715011), we get a palindrome (3547887453).

The spelling of 1105172442 in words is "one billion, one hundred five million, one hundred seventy-two thousand, four hundred forty-two".