40663626 has 64 divisors (see below), whose sum is σ = 90979200. Its totient is φ = 12056576.

The previous prime is 40663619. The next prime is 40663627. The reversal of 40663626 is 62636604.

40663626 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (40663627) 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 31 ways as a sum of consecutive naturals, for example, 174406 + ... + 174638.

It is an arithmetic number, because the mean of its divisors is an integer number (1421550).

Almost surely, 2^40663626 is an apocalyptic number.

40663626 is an abundant number, since it is smaller than the sum of its proper divisors (50315574).

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

40663626 is a wasteful number, since it uses less digits than its factorization.

40663626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343.

The product of its (nonzero) digits is 31104, while the sum is 33.

The square root of 40663626 is about 6376.8037448239. The cubic root of 40663626 is about 343.8761328417.

The spelling of 40663626 in words is "forty million, six hundred sixty-three thousand, six hundred twenty-six".