40725718 has 16 divisors (see below), whose sum is σ = 66749184. Its totient is φ = 18481960.

The previous prime is 40725703. The next prime is 40725719. The reversal of 40725718 is 81752704.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40725719) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18471 + ... + 20557.

It is an arithmetic number, because the mean of its divisors is an integer number (4171824).

Almost surely, 2^40725718 is an apocalyptic number.

40725718 is a deficient number, since it is larger than the sum of its proper divisors (26023466).

40725718 is a wasteful number, since it uses less digits than its factorization.

40725718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2987.

The product of its (nonzero) digits is 15680, while the sum is 34.

The square root of 40725718 is about 6381.6704709660. The cubic root of 40725718 is about 344.0510729560.

The spelling of 40725718 in words is "forty million, seven hundred twenty-five thousand, seven hundred eighteen".