1122840009 has 16 divisors (see below), whose sum is σ = 1720828800. Its totient is φ = 722747088.

The previous prime is 1122839989. The next prime is 1122840023. The reversal of 1122840009 is 9000482211.

1122840009 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1122840009 - 2¹⁶ = 1122774473 is a prime.

It is a super-2 number, since 2×1122840009² = 2521539371622240162, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1122840029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 716229 + ... + 717794.

It is an arithmetic number, because the mean of its divisors is an integer number (107551800).

Almost surely, 2^1122840009 is an apocalyptic number.

It is an amenable number.

1122840009 is a deficient number, since it is larger than the sum of its proper divisors (597988791).

1122840009 is a wasteful number, since it uses less digits than its factorization.

1122840009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1434061 (or 1434055 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 1122840009 is about 33508.8049473567. The cubic root of 1122840009 is about 1039.3758610234.

The spelling of 1122840009 in words is "one billion, one hundred twenty-two million, eight hundred forty thousand, nine".