40052831 has 12 divisors (see below), whose sum is σ = 49568112. Its totient is φ = 31689216.

The previous prime is 40052827. The next prime is 40052843. The reversal of 40052831 is 13825004.

40052831 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40052831 - 2² = 40052827 is a prime.

It is a super-2 number, since 2×40052831² = 3208458542229122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40052797 and 40052806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40052431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15746 + ... + 18111.

It is an arithmetic number, because the mean of its divisors is an integer number (4130676).

Almost surely, 2^40052831 is an apocalyptic number.

40052831 is a deficient number, since it is larger than the sum of its proper divisors (9515281).

40052831 is a wasteful number, since it uses less digits than its factorization.

40052831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33890 (or 33877 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 40052831 is about 6328.7305994172. The cubic root of 40052831 is about 342.1456893280.

Adding to 40052831 its reverse (13825004), we get a palindrome (53877835).

The spelling of 40052831 in words is "forty million, fifty-two thousand, eight hundred thirty-one".