40010238 has 24 divisors (see below), whose sum is σ = 91252200. Its totient is φ = 12634704.

The previous prime is 40010237. The next prime is 40010239. The reversal of 40010238 is 83201004.

It is a happy number.

40010238 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (40010237) and next prime (40010239).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 40010238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40010237) 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, 58153 + ... + 58836.

It is an arithmetic number, because the mean of its divisors is an integer number (3802175).

Almost surely, 2^40010238 is an apocalyptic number.

40010238 is an abundant number, since it is smaller than the sum of its proper divisors (51241962).

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

40010238 is a wasteful number, since it uses less digits than its factorization.

40010238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117016 (or 117013 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 40010238 is about 6325.3646535200. The cubic root of 40010238 is about 342.0243647359.

The spelling of 40010238 in words is "forty million, ten thousand, two hundred thirty-eight".