1129957730 has 32 divisors (see below), whose sum is σ = 2222365248. Its totient is φ = 410238400.

The previous prime is 1129957709. The next prime is 1129957757. The reversal of 1129957730 is 377599211.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63965 + ... + 79695.

It is an arithmetic number, because the mean of its divisors is an integer number (69448914).

Almost surely, 2^1129957730 is an apocalyptic number.

1129957730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1129957730 is a deficient number, since it is larger than the sum of its proper divisors (1092407518).

1129957730 is a wasteful number, since it uses less digits than its factorization.

1129957730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16402.

The product of its (nonzero) digits is 119070, while the sum is 44.

The square root of 1129957730 is about 33614.8438937324. The cubic root of 1129957730 is about 1041.5674496505.

It can be divided in two parts, 1129 and 957730, that added together give a palindrome (958859).

The spelling of 1129957730 in words is "one billion, one hundred twenty-nine million, nine hundred fifty-seven thousand, seven hundred thirty".