40113112 has 32 divisors (see below), whose sum is σ = 82338480. Its totient is φ = 18207360.

The previous prime is 40113053. The next prime is 40113131. The reversal of 40113112 is 21131104.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 40113092 and 40113101.

It is a congruent number.

It is an unprimeable number.

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, 3183 + ... + 9505.

Almost surely, 2^40113112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40113112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41169240).

40113112 is an abundant number, since it is smaller than the sum of its proper divisors (42225368).

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

40113112 is a wasteful number, since it uses less digits than its factorization.

40113112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6403 (or 6399 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 40113112 is about 6333.4912962757. The cubic root of 40113112 is about 342.3172506163.

Adding to 40113112 its reverse (21131104), we get a palindrome (61244216).

The spelling of 40113112 in words is "forty million, one hundred thirteen thousand, one hundred twelve".