1130720040 has 128 divisors (see below), whose sum is σ = 3890764800. Its totient is φ = 291790080.

The previous prime is 1130720023. The next prime is 1130720057. The reversal of 1130720040 is 400270311.

It is an interprime number because it is at equal distance from previous prime (1130720023) and next prime (1130720057).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1130719995 and 1130720022.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16594 + ... + 50366.

It is an arithmetic number, because the mean of its divisors is an integer number (30396600).

Almost surely, 2^1130720040 is an apocalyptic number.

1130720040 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 1130720040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1945382400).

1130720040 is an abundant number, since it is smaller than the sum of its proper divisors (2760044760).

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

1130720040 is a wasteful number, since it uses less digits than its factorization.

1130720040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33824 (or 33814 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 1130720040 is about 33626.1808714579. The cubic root of 1130720040 is about 1041.8016232469.

Adding to 1130720040 its reverse (400270311), we get a palindrome (1530990351).

The spelling of 1130720040 in words is "one billion, one hundred thirty million, seven hundred twenty thousand, forty".