40433031 has 12 divisors (see below), whose sum is σ = 58470360. Its totient is φ = 26924400.

The previous prime is 40433023. The next prime is 40433051. The reversal of 40433031 is 13033404.

It is not a de Polignac number, because 40433031 - 2³ = 40433023 is a prime.

It is a super-2 number, since 2×40433031² = 3269659991693922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40432995 and 40433013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40433051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7956 + ... + 12006.

It is an arithmetic number, because the mean of its divisors is an integer number (4872530).

Almost surely, 2^40433031 is an apocalyptic number.

40433031 is a deficient number, since it is larger than the sum of its proper divisors (18037329).

40433031 is a wasteful number, since it uses less digits than its factorization.

40433031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5166 (or 5163 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 40433031 is about 6358.6972722406. The cubic root of 40433031 is about 343.2248834795.

Adding to 40433031 its reverse (13033404), we get a palindrome (53466435).

The spelling of 40433031 in words is "forty million, four hundred thirty-three thousand, thirty-one".