40285727 has 4 divisors (see below), whose sum is σ = 41674920. Its totient is φ = 38896536.

The previous prime is 40285723. The next prime is 40285753. The reversal of 40285727 is 72758204.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40285727 - 2² = 40285723 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40285723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 694553 + ... + 694610.

It is an arithmetic number, because the mean of its divisors is an integer number (10418730).

Almost surely, 2^40285727 is an apocalyptic number.

40285727 is a deficient number, since it is larger than the sum of its proper divisors (1389193).

40285727 is a wasteful number, since it uses less digits than its factorization.

40285727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1389192.

The product of its (nonzero) digits is 31360, while the sum is 35.

The square root of 40285727 is about 6347.1038277312. The cubic root of 40285727 is about 342.8075685681.

The spelling of 40285727 in words is "forty million, two hundred eighty-five thousand, seven hundred twenty-seven".