40394038 has 8 divisors (see below), whose sum is σ = 63780120. Its totient is φ = 19134000.

The previous prime is 40394027. The next prime is 40394063. The reversal of 40394038 is 83049304.

40394038 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 531463 + ... + 531538.

It is an arithmetic number, because the mean of its divisors is an integer number (7972515).

Almost surely, 2^40394038 is an apocalyptic number.

40394038 is a deficient number, since it is larger than the sum of its proper divisors (23386082).

40394038 is a wasteful number, since it uses less digits than its factorization.

40394038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1063022.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 40394038 is about 6355.6304171970. The cubic root of 40394038 is about 343.1145143737.

The spelling of 40394038 in words is "forty million, three hundred ninety-four thousand, thirty-eight".