40112031 has 8 divisors (see below), whose sum is σ = 53599104. Its totient is φ = 26683160.

The previous prime is 40112003. The next prime is 40112081. The reversal of 40112031 is 13021104.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40112031 is a prime.

It is a super-2 number, since 2×40112031² = 3217950061889922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40111998 and 40112016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40112081) 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, 12915 + ... + 15716.

It is an arithmetic number, because the mean of its divisors is an integer number (6699888).

Almost surely, 2^40112031 is an apocalyptic number.

40112031 is a deficient number, since it is larger than the sum of its proper divisors (13487073).

40112031 is a wasteful number, since it uses less digits than its factorization.

40112031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29101.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 40112031 is about 6333.4059557240. The cubic root of 40112031 is about 342.3141755763.

Adding to 40112031 its reverse (13021104), we get a palindrome (53133135).

The spelling of 40112031 in words is "forty million, one hundred twelve thousand, thirty-one".