1122520740 has 96 divisors (see below), whose sum is σ = 3501840384. Its totient is φ = 266328960.

The previous prime is 1122520739. The next prime is 1122520759. The reversal of 1122520740 is 470252211.

It is a self number, because there is not a number n which added to its sum of digits gives 1122520740.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12927 + ... + 49113.

It is an arithmetic number, because the mean of its divisors is an integer number (36477504).

Almost surely, 2^1122520740 is an apocalyptic number.

1122520740 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 1122520740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1750920192).

1122520740 is an abundant number, since it is smaller than the sum of its proper divisors (2379319644).

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

1122520740 is a wasteful number, since it uses less digits than its factorization.

1122520740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36257 (or 36255 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 1122520740 is about 33504.0406518378. The cubic root of 1122520740 is about 1039.2773394335.

Adding to 1122520740 its reverse (470252211), we get a palindrome (1592772951).

The spelling of 1122520740 in words is "one billion, one hundred twenty-two million, five hundred twenty thousand, seven hundred forty".