40818725 has 6 divisors (see below), whose sum is σ = 50615250. Its totient is φ = 32654960.

The previous prime is 40818719. The next prime is 40818761. The reversal of 40818725 is 52781804.

40818725 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 1493284 + 39325441 = 1222^2 + 6271^2 .

It is not a de Polignac number, because 40818725 - 2⁸ = 40818469 is a prime.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 816350 + ... + 816399.

It is an arithmetic number, because the mean of its divisors is an integer number (8435875).

Almost surely, 2^40818725 is an apocalyptic number.

It is an amenable number.

40818725 is a deficient number, since it is larger than the sum of its proper divisors (9796525).

40818725 is a wasteful number, since it uses less digits than its factorization.

40818725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1632759 (or 1632754 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 35.

The square root of 40818725 is about 6388.9533571627. The cubic root of 40818725 is about 344.3127817017.

The spelling of 40818725 in words is "forty million, eight hundred eighteen thousand, seven hundred twenty-five".