1126955720 has 32 divisors (see below), whose sum is σ = 2766165120. Its totient is φ = 409801920.

The previous prime is 1126955719. The next prime is 1126955723. The reversal of 1126955720 is 275596211.

It is a happy number.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1126955723) 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, 1280192 + ... + 1281071.

It is an arithmetic number, because the mean of its divisors is an integer number (86442660).

Almost surely, 2^1126955720 is an apocalyptic number.

1126955720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1126955720 is an abundant number, since it is smaller than the sum of its proper divisors (1639209400).

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

1126955720 is a wasteful number, since it uses less digits than its factorization.

1126955720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2561285 (or 2561281 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 38.

The square root of 1126955720 is about 33570.1611554070. The cubic root of 1126955720 is about 1040.6442384116.

The spelling of 1126955720 in words is "one billion, one hundred twenty-six million, nine hundred fifty-five thousand, seven hundred twenty".