40057272 has 24 divisors (see below), whose sum is σ = 108488640. Its totient is φ = 13352400.

The previous prime is 40057231. The next prime is 40057279. The reversal of 40057272 is 27275004.

40057272 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (24).

It is a nialpdrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40057279) 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 5 ways as a sum of consecutive naturals, for example, 278104 + ... + 278247.

It is an arithmetic number, because the mean of its divisors is an integer number (4520360).

Almost surely, 2^40057272 is an apocalyptic number.

It is an amenable number.

40057272 is an abundant number, since it is smaller than the sum of its proper divisors (68431368).

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

40057272 is a wasteful number, since it uses less digits than its factorization.

40057272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556363 (or 556356 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 27.

The square root of 40057272 is about 6329.0814499420. The cubic root of 40057272 is about 342.1583344004.

The spelling of 40057272 in words is "forty million, fifty-seven thousand, two hundred seventy-two".