40627644 has 12 divisors (see below), whose sum is σ = 94797864. Its totient is φ = 13542544.

The previous prime is 40627633. The next prime is 40627649. The reversal of 40627644 is 44672604.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40627649) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1692807 + ... + 1692830.

It is an arithmetic number, because the mean of its divisors is an integer number (7899822).

Almost surely, 2^40627644 is an apocalyptic number.

It is an amenable number.

40627644 is an abundant number, since it is smaller than the sum of its proper divisors (54170220).

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

40627644 is a wasteful number, since it uses less digits than its factorization.

40627644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3385644 (or 3385642 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 33.

The square root of 40627644 is about 6373.9818010409. The cubic root of 40627644 is about 343.7746744162.

The spelling of 40627644 in words is "forty million, six hundred twenty-seven thousand, six hundred forty-four".