1105442240 has 112 divisors (see below), whose sum is σ = 3025152192. Its totient is φ = 376897536.

The previous prime is 1105442227. The next prime is 1105442267. The reversal of 1105442240 is 422445011.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent 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, 431042 + ... + 433598.

Almost surely, 2^1105442240 is an apocalyptic number.

1105442240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1105442240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1512576096).

1105442240 is an abundant number, since it is smaller than the sum of its proper divisors (1919709952).

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

1105442240 is a wasteful number, since it uses less digits than its factorization.

1105442240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2774 (or 2764 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 1105442240 is about 33248.1915297659. The cubic root of 1105442240 is about 1033.9797144425.

Adding to 1105442240 its reverse (422445011), we get a palindrome (1527887251).

The spelling of 1105442240 in words is "one billion, one hundred five million, four hundred forty-two thousand, two hundred forty".