1113405660 has 36 divisors (see below), whose sum is σ = 3377331048. Its totient is φ = 296908128.

The previous prime is 1113405653. The next prime is 1113405737. The reversal of 1113405660 is 665043111.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3092614 + ... + 3092973.

Almost surely, 2^1113405660 is an apocalyptic number.

1113405660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1113405660 is an abundant number, since it is smaller than the sum of its proper divisors (2263925388).

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

1113405660 is a wasteful number, since it uses less digits than its factorization.

1113405660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6185602 (or 6185597 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 1113405660 is about 33367.7338157688. The cubic root of 1113405660 is about 1036.4566481198.

Adding to 1113405660 its reverse (665043111), we get a palindrome (1778448771).

The spelling of 1113405660 in words is "one billion, one hundred thirteen million, four hundred five thousand, six hundred sixty".