40500431 has 6 divisors (see below), whose sum is σ = 41001240. Its totient is φ = 40005668.

The previous prime is 40500359. The next prime is 40500433. The reversal of 40500431 is 13400504.

It is not a de Polignac number, because 40500431 - 2¹⁸ = 40238287 is a prime.

It is a super-2 number, since 2×40500431² = 3280569822371522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40500433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3950 + ... + 9828.

It is an arithmetic number, because the mean of its divisors is an integer number (6833540).

Almost surely, 2^40500431 is an apocalyptic number.

40500431 is a deficient number, since it is larger than the sum of its proper divisors (500809).

40500431 is an frugal number, since it uses more digits than its factorization.

40500431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6045 (or 5962 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 40500431 is about 6363.9948931469. The cubic root of 40500431 is about 343.4154909637.

Adding to 40500431 its reverse (13400504), we get a palindrome (53900935).

The spelling of 40500431 in words is "forty million, five hundred thousand, four hundred thirty-one".