40068820 has 24 divisors (see below), whose sum is σ = 91794528. Its totient is φ = 14570400.

The previous prime is 40068803. The next prime is 40068827. The reversal of 40068820 is 2886004.

40068820 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 not an unprimeable number, because it can be changed into a prime (40068827) by changing a digit.

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, 90846 + ... + 91285.

It is an arithmetic number, because the mean of its divisors is an integer number (3824772).

Almost surely, 2^40068820 is an apocalyptic number.

It is an amenable number.

40068820 is an abundant number, since it is smaller than the sum of its proper divisors (51725708).

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

40068820 is a wasteful number, since it uses less digits than its factorization.

40068820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182151 (or 182149 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 40068820 is about 6329.9936808815. The cubic root of 40068820 is about 342.1912112008.

The spelling of 40068820 in words is "forty million, sixty-eight thousand, eight hundred twenty".