1113863388 has 24 divisors (see below), whose sum is σ = 2835288960. Its totient is φ = 337534320.

The previous prime is 1113863383. The next prime is 1113863411. The reversal of 1113863388 is 8833683111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113863383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4219048 + ... + 4219311.

It is an arithmetic number, because the mean of its divisors is an integer number (118137040).

Almost surely, 2^1113863388 is an apocalyptic number.

It is an amenable number.

1113863388 is an abundant number, since it is smaller than the sum of its proper divisors (1721425572).

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

1113863388 is a wasteful number, since it uses less digits than its factorization.

1113863388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8438377 (or 8438375 counting only the distinct ones).

The product of its digits is 82944, while the sum is 42.

The square root of 1113863388 is about 33374.5919525618. The cubic root of 1113863388 is about 1036.5986599217.

The spelling of 1113863388 in words is "one billion, one hundred thirteen million, eight hundred sixty-three thousand, three hundred eighty-eight".