1112621680 has 20 divisors (see below), whose sum is σ = 2586845592. Its totient is φ = 445048640.

The previous prime is 1112621669. The next prime is 1112621681. The reversal of 1112621680 is 861262111.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112621681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6953806 + ... + 6953965.

Almost surely, 2^1112621680 is an apocalyptic number.

1112621680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1112621680 is an abundant number, since it is smaller than the sum of its proper divisors (1474223912).

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

1112621680 is a wasteful number, since it uses less digits than its factorization.

1112621680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13907784 (or 13907778 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 1112621680 is about 33355.9841707601. The cubic root of 1112621680 is about 1036.2133249830.

Adding to 1112621680 its reverse (861262111), we get a palindrome (1973883791).

The spelling of 1112621680 in words is "one billion, one hundred twelve million, six hundred twenty-one thousand, six hundred eighty".