40260031 has 16 divisors (see below), whose sum is σ = 48655360. Its totient is φ = 32542560.

The previous prime is 40260023. The next prime is 40260037. The reversal of 40260031 is 13006204.

It is a cyclic number.

It is not a de Polignac number, because 40260031 - 2³ = 40260023 is a prime.

It is a super-2 number, since 2×40260031² = 3241740192241922, 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 = 40259987 and 40260014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40260037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35485 + ... + 36601.

It is an arithmetic number, because the mean of its divisors is an integer number (3040960).

Almost surely, 2^40260031 is an apocalyptic number.

40260031 is a deficient number, since it is larger than the sum of its proper divisors (8395329).

40260031 is a wasteful number, since it uses less digits than its factorization.

40260031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1414.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 40260031 is about 6345.0792745245. The cubic root of 40260031 is about 342.7346671753.

Adding to 40260031 its reverse (13006204), we get a palindrome (53266235).

The spelling of 40260031 in words is "forty million, two hundred sixty thousand, thirty-one".