40260438 has 24 divisors (see below), whose sum is σ = 87359688. Its totient is φ = 13400352.

The previous prime is 40260433. The next prime is 40260457. The reversal of 40260438 is 83406204.

40260438 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40260433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15981 + ... + 18327.

It is an arithmetic number, because the mean of its divisors is an integer number (3639987).

Almost surely, 2^40260438 is an apocalyptic number.

40260438 is an abundant number, since it is smaller than the sum of its proper divisors (47099250).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40260438 is a wasteful number, since it uses less digits than its factorization.

40260438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3308 (or 3305 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 40260438 is about 6345.1113465407. Note that the first 3 decimals coincide. The cubic root of 40260438 is about 342.7358221052.

The spelling of 40260438 in words is "forty million, two hundred sixty thousand, four hundred thirty-eight".