40220606 has 32 divisors (see below), whose sum is σ = 70191360. Its totient is φ = 17145216.

The previous prime is 40220599. The next prime is 40220639. The reversal of 40220606 is 60602204.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13505 + ... + 16211.

It is an arithmetic number, because the mean of its divisors is an integer number (2193480).

Almost surely, 2^40220606 is an apocalyptic number.

40220606 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

40220606 is a deficient number, since it is larger than the sum of its proper divisors (29970754).

40220606 is a wasteful number, since it uses less digits than its factorization.

40220606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2768.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 40220606 is about 6341.9717754023. The cubic root of 40220606 is about 342.6227552948.

The spelling of 40220606 in words is "forty million, two hundred twenty thousand, six hundred six".