40563401 has 4 divisors (see below), whose sum is σ = 40592772. Its totient is φ = 40534032.

The previous prime is 40563349. The next prime is 40563403. The reversal of 40563401 is 10436504.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 39075001 + 1488400 = 6251^2 + 1220^2 .

It is a cyclic number.

It is not a de Polignac number, because 40563401 - 2⁶ = 40563337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40563403) 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, 12506 + ... + 15411.

It is an arithmetic number, because the mean of its divisors is an integer number (10148193).

Almost surely, 2^40563401 is an apocalyptic number.

It is an amenable number.

40563401 is a deficient number, since it is larger than the sum of its proper divisors (29371).

40563401 is a wasteful number, since it uses less digits than its factorization.

40563401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29370.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 40563401 is about 6368.9403357230. The cubic root of 40563401 is about 343.5933794056.

Adding to 40563401 its reverse (10436504), we get a palindrome (50999905).

The spelling of 40563401 in words is "forty million, five hundred sixty-three thousand, four hundred one".