40493894 has 16 divisors (see below), whose sum is σ = 70836000. Its totient is φ = 17354232.

The previous prime is 40493861. The next prime is 40493933. The reversal of 40493894 is 49839404.

40493894 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 28829 + ... + 30200.

It is an arithmetic number, because the mean of its divisors is an integer number (4427250).

Almost surely, 2^40493894 is an apocalyptic number.

40493894 is a deficient number, since it is larger than the sum of its proper divisors (30342106).

40493894 is an equidigital number, since it uses as much as digits as its factorization.

40493894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59052 (or 59038 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 40493894 is about 6363.4812799285. The cubic root of 40493894 is about 343.3970135649.

The spelling of 40493894 in words is "forty million, four hundred ninety-three thousand, eight hundred ninety-four".