40256263 has 8 divisors (see below), whose sum is σ = 41756400. Its totient is φ = 38763648.

The previous prime is 40256257. The next prime is 40256287. The reversal of 40256263 is 36265204.

It is a happy number.

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 40256263 - 2⁹ = 40255751 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 (40256063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10495 + ... + 13807.

It is an arithmetic number, because the mean of its divisors is an integer number (5219550).

Almost surely, 2^40256263 is an apocalyptic number.

40256263 is a deficient number, since it is larger than the sum of its proper divisors (1500137).

40256263 is a wasteful number, since it uses less digits than its factorization.

40256263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3761.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 40256263 is about 6344.7823445726. The cubic root of 40256263 is about 342.7239744818.

It can be divided in two parts, 402 and 56263, that added together give a palindrome (56665).

The spelling of 40256263 in words is "forty million, two hundred fifty-six thousand, two hundred sixty-three".