40427305 has 8 divisors (see below), whose sum is σ = 50185800. Its totient is φ = 31226496.

The previous prime is 40427297. The next prime is 40427311. The reversal of 40427305 is 50372404.

It can be written as a sum of positive squares in 4 ways, for example, as 17464041 + 22963264 = 4179^2 + 4792^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40427305 - 2³ = 40427297 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40427305.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139260 + ... + 139549.

It is an arithmetic number, because the mean of its divisors is an integer number (6273225).

Almost surely, 2^40427305 is an apocalyptic number.

It is an amenable number.

40427305 is a deficient number, since it is larger than the sum of its proper divisors (9758495).

40427305 is a wasteful number, since it uses less digits than its factorization.

40427305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278843.

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 40427305 is about 6358.2470068408. The cubic root of 40427305 is about 343.2086805681.

Adding to 40427305 its reverse (50372404), we get a palindrome (90799709).

The spelling of 40427305 in words is "forty million, four hundred twenty-seven thousand, three hundred five".