40288242 has 8 divisors (see below), whose sum is σ = 80576496. Its totient is φ = 13429412.

The previous prime is 40288231. The next prime is 40288267. The reversal of 40288242 is 24288204.

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

40288242 is an admirable number.

It is an unprimeable number.

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, 3357348 + ... + 3357359.

It is an arithmetic number, because the mean of its divisors is an integer number (10072062).

Almost surely, 2^40288242 is an apocalyptic number.

40288242 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.

40288242 is a wasteful number, since it uses less digits than its factorization.

40288242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6714712.

The product of its (nonzero) digits is 8192, while the sum is 30.

The square root of 40288242 is about 6347.3019464966. The cubic root of 40288242 is about 342.8147021375.

The spelling of 40288242 in words is "forty million, two hundred eighty-eight thousand, two hundred forty-two".