40416618 has 16 divisors (see below), whose sum is σ = 88181856. Its totient is φ = 12247440.

The previous prime is 40416577. The next prime is 40416619. The reversal of 40416618 is 81661404.

40416618 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 (40416619) 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, 306121 + ... + 306252.

It is an arithmetic number, because the mean of its divisors is an integer number (5511366).

Almost surely, 2^40416618 is an apocalyptic number.

40416618 is an abundant number, since it is smaller than the sum of its proper divisors (47765238).

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

40416618 is a wasteful number, since it uses less digits than its factorization.

40416618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612389.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 40416618 is about 6357.4065466981. The cubic root of 40416618 is about 343.1784353792.

The spelling of 40416618 in words is "forty million, four hundred sixteen thousand, six hundred eighteen".