40725760 has 36 divisors (see below), whose sum is σ = 97553988. Its totient is φ = 16289792.

The previous prime is 40725739. The next prime is 40725767. The reversal of 40725760 is 6752704.

It can be written as a sum of positive squares in 2 ways, for example, as 26708224 + 14017536 = 5168^2 + 3744^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40725767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14629 + ... + 17188.

It is an arithmetic number, because the mean of its divisors is an integer number (2709833).

Almost surely, 2^40725760 is an apocalyptic number.

40725760 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40725760 is an abundant number, since it is smaller than the sum of its proper divisors (56828228).

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

40725760 is an equidigital number, since it uses as much as digits as its factorization.

40725760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31838 (or 31824 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 40725760 is about 6381.6737616397. The cubic root of 40725760 is about 344.0511912280.

The spelling of 40725760 in words is "forty million, seven hundred twenty-five thousand, seven hundred sixty".