40106238 has 8 divisors (see below), whose sum is σ = 80212488. Its totient is φ = 13368744.

The previous prime is 40106221. The next prime is 40106239. The reversal of 40106238 is 83260104.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

40106238 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40106239) 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 3 ways as a sum of consecutive naturals, for example, 3342181 + ... + 3342192.

It is an arithmetic number, because the mean of its divisors is an integer number (10026561).

Almost surely, 2^40106238 is an apocalyptic number.

40106238 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

40106238 is a wasteful number, since it uses less digits than its factorization.

40106238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6684378.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 40106238 is about 6332.9486023495. The cubic root of 40106238 is about 342.2976957203.

The spelling of 40106238 in words is "forty million, one hundred six thousand, two hundred thirty-eight".