113620388 has 12 divisors (see below), whose sum is σ = 227240832. Its totient is φ = 48694440.

The previous prime is 113620379. The next prime is 113620417. The reversal of 113620388 is 883026311.

It is a happy number.

113620388 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2028908 + ... + 2028963.

It is an arithmetic number, because the mean of its divisors is an integer number (18936736).

Almost surely, 2^113620388 is an apocalyptic number.

It is an amenable number.

113620388 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

113620388 is a wasteful number, since it uses less digits than its factorization.

113620388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4057882 (or 4057880 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 113620388 is about 10659.2864676769. The cubic root of 113620388 is about 484.3419537802.

Adding to 113620388 its reverse (883026311), we get a palindrome (996646699).

The spelling of 113620388 in words is "one hundred thirteen million, six hundred twenty thousand, three hundred eighty-eight".