1129957628 has 6 divisors (see below), whose sum is σ = 1977425856. Its totient is φ = 564978812.

The previous prime is 1129957579. The next prime is 1129957637. The reversal of 1129957628 is 8267599211.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 141244700 + ... + 141244707.

It is an arithmetic number, because the mean of its divisors is an integer number (329570976).

Almost surely, 2^1129957628 is an apocalyptic number.

It is an amenable number.

1129957628 is a deficient number, since it is larger than the sum of its proper divisors (847468228).

1129957628 is a wasteful number, since it uses less digits than its factorization.

1129957628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282489411 (or 282489409 counting only the distinct ones).

The product of its digits is 544320, while the sum is 50.

The square root of 1129957628 is about 33614.8423765455. The cubic root of 1129957628 is about 1041.5674183101.

The spelling of 1129957628 in words is "one billion, one hundred twenty-nine million, nine hundred fifty-seven thousand, six hundred twenty-eight".