1129380260 has 24 divisors (see below), whose sum is σ = 2429546616. Its totient is φ = 440733440.

The previous prime is 1129380229. The next prime is 1129380277. The reversal of 1129380260 is 620839211.

It can be written as a sum of positive squares in 4 ways, for example, as 2166784 + 1127213476 = 1472^2 + 33574^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 687827 + ... + 689466.

It is an arithmetic number, because the mean of its divisors is an integer number (101231109).

Almost surely, 2^1129380260 is an apocalyptic number.

1129380260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1129380260 is an abundant number, since it is smaller than the sum of its proper divisors (1300166356).

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

1129380260 is a wasteful number, since it uses less digits than its factorization.

1129380260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1377343 (or 1377341 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 1129380260 is about 33606.2532871488. The cubic root of 1129380260 is about 1041.3899868333.

The spelling of 1129380260 in words is "one billion, one hundred twenty-nine million, three hundred eighty thousand, two hundred sixty".