1129559620 has 24 divisors (see below), whose sum is σ = 2710943424. Its totient is φ = 387277536.

The previous prime is 1129559603. The next prime is 1129559653. The reversal of 1129559620 is 269559211.

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, 4034002 + ... + 4034281.

It is an arithmetic number, because the mean of its divisors is an integer number (112955976).

Almost surely, 2^1129559620 is an apocalyptic number.

1129559620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1129559620 is an abundant number, since it is smaller than the sum of its proper divisors (1581383804).

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

1129559620 is a wasteful number, since it uses less digits than its factorization.

1129559620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8068299 (or 8068297 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 40.

The square root of 1129559620 is about 33608.9217321830. The cubic root of 1129559620 is about 1041.4451125890.

The spelling of 1129559620 in words is "one billion, one hundred twenty-nine million, five hundred fifty-nine thousand, six hundred twenty".