1121869260 has 72 divisors (see below), whose sum is σ = 3423472416. Its totient is φ = 297365760.

The previous prime is 1121869241. The next prime is 1121869277. The reversal of 1121869260 is 629681211.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11400 + ... + 48720.

It is an arithmetic number, because the mean of its divisors is an integer number (47548228).

Almost surely, 2^1121869260 is an apocalyptic number.

1121869260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1121869260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1711736208).

1121869260 is an abundant number, since it is smaller than the sum of its proper divisors (2301603156).

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

1121869260 is a wasteful number, since it uses less digits than its factorization.

1121869260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37503 (or 37498 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 1121869260 is about 33494.3168313671. The cubic root of 1121869260 is about 1039.0762445812.

The spelling of 1121869260 in words is "one billion, one hundred twenty-one million, eight hundred sixty-nine thousand, two hundred sixty".