1105623240 has 32 divisors (see below), whose sum is σ = 3316870080. Its totient is φ = 294832832.

The previous prime is 1105623229. The next prime is 1105623241. The reversal of 1105623240 is 423265011.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1105623240.

It is not an unprimeable number, because it can be changed into a prime (1105623241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4606644 + ... + 4606883.

It is an arithmetic number, because the mean of its divisors is an integer number (103652190).

Almost surely, 2^1105623240 is an apocalyptic number.

1105623240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1105623240 is an abundant number, since it is smaller than the sum of its proper divisors (2211246840).

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

1105623240 is a wasteful number, since it uses less digits than its factorization.

1105623240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9213541 (or 9213537 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1105623240 is about 33250.9133709136. The cubic root of 1105623240 is about 1034.0361443816.

Adding to 1105623240 its reverse (423265011), we get a palindrome (1528888251).

The spelling of 1105623240 in words is "one billion, one hundred five million, six hundred twenty-three thousand, two hundred forty".