40268031 has 16 divisors (see below), whose sum is σ = 55278720. Its totient is φ = 26062880.

The previous prime is 40268029. The next prime is 40268051. The reversal of 40268031 is 13086204.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 40268031 - 2¹ = 40268029 is a prime.

It is a super-2 number, since 2×40268031² = 3243028641233922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40267992 and 40268010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40268021) 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, 13321 + ... + 16061.

It is an arithmetic number, because the mean of its divisors is an integer number (3454920).

Almost surely, 2^40268031 is an apocalyptic number.

40268031 is a deficient number, since it is larger than the sum of its proper divisors (15010689).

40268031 is a wasteful number, since it uses less digits than its factorization.

40268031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2886.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 40268031 is about 6345.7096529860. The cubic root of 40268031 is about 342.7573670729.

The spelling of 40268031 in words is "forty million, two hundred sixty-eight thousand, thirty-one".