40112331 has 24 divisors (see below), whose sum is σ = 62720064. Its totient is φ = 22735440.

The previous prime is 40112279. The next prime is 40112339. The reversal of 40112331 is 13321104.

It is not a de Polignac number, because 40112331 - 2¹⁰ = 40111307 is a prime.

It is a super-2 number, since 2×40112331² = 3217998196507122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40112331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40112339) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18216 + ... + 20298.

It is an arithmetic number, because the mean of its divisors is an integer number (2613336).

Almost surely, 2^40112331 is an apocalyptic number.

40112331 is a deficient number, since it is larger than the sum of its proper divisors (22607733).

40112331 is a wasteful number, since it uses less digits than its factorization.

40112331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2231 (or 2224 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 40112331 is about 6333.4296396186. The cubic root of 40112331 is about 342.3150289695.

Adding to 40112331 its reverse (13321104), we get a palindrome (53433435).

The spelling of 40112331 in words is "forty million, one hundred twelve thousand, three hundred thirty-one".