40718020 has 36 divisors (see below), whose sum is σ = 99470700. Its totient is φ = 13960128.

The previous prime is 40718017. The next prime is 40718023. The reversal of 40718020 is 2081704.

40718020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (40718017) and next prime (40718023).

It can be written as a sum of positive squares in 2 ways, for example, as 6635776 + 34082244 = 2576^2 + 5838^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40717982 and 40718000.

It is not an unprimeable number, because it can be changed into a prime (40718023) 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 11 ways as a sum of consecutive naturals, for example, 19795 + ... + 21754.

It is an arithmetic number, because the mean of its divisors is an integer number (2763075).

Almost surely, 2^40718020 is an apocalyptic number.

It is an amenable number.

40718020 is an abundant number, since it is smaller than the sum of its proper divisors (58752680).

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

40718020 is a wasteful number, since it uses less digits than its factorization.

40718020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41572 (or 41563 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 40718020 is about 6381.0673088442. The cubic root of 40718020 is about 344.0293940089.

Adding to 40718020 its reverse (2081704), we get a palindrome (42799724).

The spelling of 40718020 in words is "forty million, seven hundred eighteen thousand, twenty".