40431033 has 12 divisors (see below), whose sum is σ = 60939840. Its totient is φ = 25781976.

The previous prime is 40431023. The next prime is 40431059. The reversal of 40431033 is 33013404.

It is not a de Polignac number, because 40431033 - 2⁹ = 40430521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40430997 and 40431015.

It is not an unprimeable number, because it can be changed into a prime (40431023) 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, 97453 + ... + 97866.

It is an arithmetic number, because the mean of its divisors is an integer number (5078320).

Almost surely, 2^40431033 is an apocalyptic number.

It is an amenable number.

40431033 is a deficient number, since it is larger than the sum of its proper divisors (20508807).

40431033 is a wasteful number, since it uses less digits than its factorization.

40431033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195348 (or 195345 counting only the distinct ones).

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

The square root of 40431033 is about 6358.5401626474. The cubic root of 40431033 is about 343.2192298955.

Adding to 40431033 its reverse (33013404), we get a palindrome (73444437).

The spelling of 40431033 in words is "forty million, four hundred thirty-one thousand, thirty-three".