40565542 has 16 divisors (see below), whose sum is σ = 62750160. Its totient is φ = 19653408.

The previous prime is 40565521. The next prime is 40565543. The reversal of 40565542 is 24556504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40565543) 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, 19509 + ... + 21487.

It is an arithmetic number, because the mean of its divisors is an integer number (3921885).

Almost surely, 2^40565542 is an apocalyptic number.

40565542 is a deficient number, since it is larger than the sum of its proper divisors (22184618).

40565542 is a wasteful number, since it uses less digits than its factorization.

40565542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2295.

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 40565542 is about 6369.1084148411. The cubic root of 40565542 is about 343.5994244320.

The spelling of 40565542 in words is "forty million, five hundred sixty-five thousand, five hundred forty-two".