40656622 has 16 divisors (see below), whose sum is σ = 65634192. Its totient is φ = 18817920.

The previous prime is 40656619. The next prime is 40656643. The reversal of 40656622 is 22665604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7728 + ... + 11875.

It is an arithmetic number, because the mean of its divisors is an integer number (4102137).

Almost surely, 2^40656622 is an apocalyptic number.

40656622 is a deficient number, since it is larger than the sum of its proper divisors (24977570).

40656622 is a wasteful number, since it uses less digits than its factorization.

40656622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19683.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 40656622 is about 6376.2545432252. The cubic root of 40656622 is about 343.8563883594.

The spelling of 40656622 in words is "forty million, six hundred fifty-six thousand, six hundred twenty-two".