1122768840 has 64 divisors (see below), whose sum is σ = 3376137600. Its totient is φ = 298708992.

The previous prime is 1122768839. The next prime is 1122768863. The reversal of 1122768840 is 488672211.

It is a happy number.

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, 42024 + ... + 63336.

It is an arithmetic number, because the mean of its divisors is an integer number (52752150).

Almost surely, 2^1122768840 is an apocalyptic number.

1122768840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1122768840 is an abundant number, since it is smaller than the sum of its proper divisors (2253368760).

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

1122768840 is a wasteful number, since it uses less digits than its factorization.

1122768840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21766 (or 21762 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 39.

The square root of 1122768840 is about 33507.7429857638. The cubic root of 1122768840 is about 1039.3539009629.

The spelling of 1122768840 in words is "one billion, one hundred twenty-two million, seven hundred sixty-eight thousand, eight hundred forty".