113422640 has 40 divisors (see below), whose sum is σ = 279223200. Its totient is φ = 42699776.

The previous prime is 113422627. The next prime is 113422643. The reversal of 113422640 is 46224311.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (113422643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40340 + ... + 43059.

It is an arithmetic number, because the mean of its divisors is an integer number (6980580).

Almost surely, 2^113422640 is an apocalyptic number.

113422640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113422640 is an abundant number, since it is smaller than the sum of its proper divisors (165800560).

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

113422640 is a wasteful number, since it uses less digits than its factorization.

113422640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83429 (or 83423 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 113422640 is about 10650.0065727679. The cubic root of 113422640 is about 484.0608033258.

Adding to 113422640 its reverse (46224311), we get a palindrome (159646951).

The spelling of 113422640 in words is "one hundred thirteen million, four hundred twenty-two thousand, six hundred forty".