40394648 has 16 divisors (see below), whose sum is σ = 86560080. Its totient is φ = 17311968.

The previous prime is 40394611. The next prime is 40394659. The reversal of 40394648 is 84649304.

40394648 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 3 ways as a sum of consecutive naturals, for example, 360611 + ... + 360722.

It is an arithmetic number, because the mean of its divisors is an integer number (5410005).

Almost surely, 2^40394648 is an apocalyptic number.

It is an amenable number.

40394648 is an abundant number, since it is smaller than the sum of its proper divisors (46165432).

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

40394648 is a wasteful number, since it uses less digits than its factorization.

40394648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721346 (or 721342 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 40394648 is about 6355.6784059611. The cubic root of 40394648 is about 343.1162415164.

The spelling of 40394648 in words is "forty million, three hundred ninety-four thousand, six hundred forty-eight".