1121858288 has 20 divisors (see below), whose sum is σ = 2301459840. Its totient is φ = 527933184.

The previous prime is 1121858279. The next prime is 1121858317. The reversal of 1121858288 is 8828581211.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2061968 + ... + 2062511.

It is an arithmetic number, because the mean of its divisors is an integer number (115072992).

Almost surely, 2^1121858288 is an apocalyptic number.

It is an amenable number.

1121858288 is an abundant number, since it is smaller than the sum of its proper divisors (1179601552).

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

1121858288 is a wasteful number, since it uses less digits than its factorization.

1121858288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4124504 (or 4124498 counting only the distinct ones).

The product of its digits is 81920, while the sum is 44.

The square root of 1121858288 is about 33494.1530419863. The cubic root of 1121858288 is about 1039.0728571450.

The spelling of 1121858288 in words is "one billion, one hundred twenty-one million, eight hundred fifty-eight thousand, two hundred eighty-eight".