1110555640 has 32 divisors (see below), whose sum is σ = 2545901280. Its totient is φ = 435839872.

The previous prime is 1110555637. The next prime is 1110555647. The reversal of 1110555640 is 465550111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1110555599 and 1110555608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1110555647) 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, 259804 + ... + 264043.

It is an arithmetic number, because the mean of its divisors is an integer number (79559415).

Almost surely, 2^1110555640 is an apocalyptic number.

1110555640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1110555640 is an abundant number, since it is smaller than the sum of its proper divisors (1435345640).

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

1110555640 is a wasteful number, since it uses less digits than its factorization.

1110555640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523911 (or 523907 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 28.

The square root of 1110555640 is about 33325.0002250563. Note that the first 3 decimals coincide. The cubic root of 1110555640 is about 1035.5715420921.

The spelling of 1110555640 in words is "one billion, one hundred ten million, five hundred fifty-five thousand, six hundred forty".