40471388 has 6 divisors (see below), whose sum is σ = 70824936. Its totient is φ = 20235692.

The previous prime is 40471351. The next prime is 40471391. The reversal of 40471388 is 88317404.

It is a happy number.

40471388 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 as a sum of consecutive naturals, namely, 5058920 + ... + 5058927.

It is an arithmetic number, because the mean of its divisors is an integer number (11804156).

Almost surely, 2^40471388 is an apocalyptic number.

It is an amenable number.

40471388 is a deficient number, since it is larger than the sum of its proper divisors (30353548).

40471388 is a wasteful number, since it uses less digits than its factorization.

40471388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10117851 (or 10117849 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 40471388 is about 6361.7126624833. The cubic root of 40471388 is about 343.3333831862. Note that the first 4 decimals are identical.

The spelling of 40471388 in words is "forty million, four hundred seventy-one thousand, three hundred eighty-eight".