40405295 has 32 divisors (see below), whose sum is σ = 58375296. Its totient is φ = 26265600.

The previous prime is 40405237. The next prime is 40405331. The reversal of 40405295 is 59250404.

It is a happy number.

It is not a de Polignac number, because 40405295 - 2⁶ = 40405231 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52715 + ... + 53475.

It is an arithmetic number, because the mean of its divisors is an integer number (1824228).

Almost surely, 2^40405295 is an apocalyptic number.

40405295 is a deficient number, since it is larger than the sum of its proper divisors (17970001).

40405295 is a wasteful number, since it uses less digits than its factorization.

40405295 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 40405295 is about 6356.5159482220. The cubic root of 40405295 is about 343.1463844346.

Adding to 40405295 its reverse (59250404), we get a palindrome (99655699).

The spelling of 40405295 in words is "forty million, four hundred five thousand, two hundred ninety-five".