40560421 has 8 divisors (see below), whose sum is σ = 46576800. Its totient is φ = 34932240.

The previous prime is 40560413. The next prime is 40560437. The reversal of 40560421 is 12406504.

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 40560421 - 2³ = 40560413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40560392 and 40560401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40560461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96826 + ... + 97243.

It is an arithmetic number, because the mean of its divisors is an integer number (5822100).

Almost surely, 2^40560421 is an apocalyptic number.

It is an amenable number.

40560421 is a deficient number, since it is larger than the sum of its proper divisors (6016379).

40560421 is a wasteful number, since it uses less digits than its factorization.

40560421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194099.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 40560421 is about 6368.7063835602. The cubic root of 40560421 is about 343.5849651428.

Adding to 40560421 its reverse (12406504), we get a palindrome (52966925).

The spelling of 40560421 in words is "forty million, five hundred sixty thousand, four hundred twenty-one".