40073890 has 16 divisors (see below), whose sum is σ = 72613440. Its totient is φ = 15922800.

The previous prime is 40073863. The next prime is 40073909. The reversal of 40073890 is 9837004.

It is a happy number.

40073890 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 11760 + ... + 14779.

It is an arithmetic number, because the mean of its divisors is an integer number (4538340).

Almost surely, 2^40073890 is an apocalyptic number.

40073890 is a deficient number, since it is larger than the sum of its proper divisors (32539550).

40073890 is a wasteful number, since it uses less digits than its factorization.

40073890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26697.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 40073890 is about 6330.3941425475. The cubic root of 40073890 is about 342.2056433393.

The spelling of 40073890 in words is "forty million, seventy-three thousand, eight hundred ninety".