40618630 has 16 divisors (see below), whose sum is σ = 78737904. Its totient is φ = 14997600.

The previous prime is 40618607. The next prime is 40618631. The reversal of 40618630 is 3681604.

40618630 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40618631) 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 7 ways as a sum of consecutive naturals, for example, 156096 + ... + 156355.

It is an arithmetic number, because the mean of its divisors is an integer number (4921119).

Almost surely, 2^40618630 is an apocalyptic number.

40618630 is a deficient number, since it is larger than the sum of its proper divisors (38119274).

40618630 is a wasteful number, since it uses less digits than its factorization.

40618630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312471.

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

The square root of 40618630 is about 6373.2746684887. The cubic root of 40618630 is about 343.7492482628.

The spelling of 40618630 in words is "forty million, six hundred eighteen thousand, six hundred thirty".