1120649656 has 32 divisors (see below), whose sum is σ = 2542652640. Its totient is φ = 452026368.

The previous prime is 1120649653. The next prime is 1120649657. The reversal of 1120649656 is 6569460211.

It is a happy number.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120649653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 587625 + ... + 589528.

It is an arithmetic number, because the mean of its divisors is an integer number (79457895).

Almost surely, 2^1120649656 is an apocalyptic number.

It is an amenable number.

1120649656 is an abundant number, since it is smaller than the sum of its proper divisors (1422002984).

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

1120649656 is a wasteful number, since it uses less digits than its factorization.

1120649656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1177183 (or 1177179 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 1120649656 is about 33476.1057472341. The cubic root of 1120649656 is about 1038.6995753062.

The spelling of 1120649656 in words is "one billion, one hundred twenty million, six hundred forty-nine thousand, six hundred fifty-six".