113009640 has 32 divisors (see below), whose sum is σ = 339029280. Its totient is φ = 30135872.

The previous prime is 113009627. The next prime is 113009647. The reversal of 113009640 is 46900311.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 113009640.

It is not an unprimeable number, because it can be changed into a prime (113009647) 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, 470754 + ... + 470993.

It is an arithmetic number, because the mean of its divisors is an integer number (10594665).

Almost surely, 2^113009640 is an apocalyptic number.

113009640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113009640 is an abundant number, since it is smaller than the sum of its proper divisors (226019640).

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

113009640 is a wasteful number, since it uses less digits than its factorization.

113009640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941761 (or 941757 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 113009640 is about 10630.5992305232. The cubic root of 113009640 is about 483.4725602346.

Adding to 113009640 its reverse (46900311), we get a palindrome (159909951).

The spelling of 113009640 in words is "one hundred thirteen million, nine thousand, six hundred forty".