40322890 has 16 divisors (see below), whose sum is σ = 72848232. Its totient is φ = 16069824.

The previous prime is 40322873. The next prime is 40322917. The reversal of 40322890 is 9822304.

40322890 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 4 ways, for example, as 18429849 + 21893041 = 4293^2 + 4679^2 .

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, 4509 + ... + 10048.

Almost surely, 2^40322890 is an apocalyptic number.

40322890 is a deficient number, since it is larger than the sum of its proper divisors (32525342).

40322890 is a wasteful number, since it uses less digits than its factorization.

40322890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14841.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 40322890 is about 6350.0307085872. The cubic root of 40322890 is about 342.9129478443.

The spelling of 40322890 in words is "forty million, three hundred twenty-two thousand, eight hundred ninety".