1105310640 has 320 divisors, whose sum is σ = 4142592000. Its totient is φ = 243403776.

The previous prime is 1105310623. The next prime is 1105310651. The reversal of 1105310640 is 460135011.

It is a super-2 number, since 2×1105310640² = 2443423221794419200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2387049 + ... + 2387511.

It is an arithmetic number, because the mean of its divisors is an integer number (12945600).

Almost surely, 2^1105310640 is an apocalyptic number.

1105310640 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 1105310640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2071296000).

1105310640 is an abundant number, since it is smaller than the sum of its proper divisors (3037281360).

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

1105310640 is a wasteful number, since it uses less digits than its factorization.

1105310640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529 (or 509 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 1105310640 is about 33246.2124158527. The cubic root of 1105310640 is about 1033.9386819563.

Adding to 1105310640 its reverse (460135011), we get a palindrome (1565445651).

The spelling of 1105310640 in words is "one billion, one hundred five million, three hundred ten thousand, six hundred forty".