40830388 has 12 divisors (see below), whose sum is σ = 73384612. Its totient is φ = 19863360.

The previous prime is 40830367. The next prime is 40830401. The reversal of 40830388 is 88303804.

It is a happy number.

40830388 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 39287824 + 1542564 = 6268^2 + 1242^2 .

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, 137793 + ... + 138088.

Almost surely, 2^40830388 is an apocalyptic number.

It is an amenable number.

40830388 is a deficient number, since it is larger than the sum of its proper divisors (32554224).

40830388 is a wasteful number, since it uses less digits than its factorization.

40830388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275922 (or 275920 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 40830388 is about 6389.8660392844. The cubic root of 40830388 is about 344.3455716984.

The spelling of 40830388 in words is "forty million, eight hundred thirty thousand, three hundred eighty-eight".