40740618 has 16 divisors (see below), whose sum is σ = 81544320. Its totient is φ = 13569696.

The previous prime is 40740611. The next prime is 40740641. The reversal of 40740618 is 81604704.

40740618 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 (40740611) 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, 12238 + ... + 15206.

It is an arithmetic number, because the mean of its divisors is an integer number (5096520).

Almost surely, 2^40740618 is an apocalyptic number.

40740618 is an abundant number, since it is smaller than the sum of its proper divisors (40803702).

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

40740618 is a wasteful number, since it uses less digits than its factorization.

40740618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5261.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 40740618 is about 6382.8377701458. The cubic root of 40740618 is about 344.0930262653.

The spelling of 40740618 in words is "forty million, seven hundred forty thousand, six hundred eighteen".