421040041 has 8 divisors (see below), whose sum is σ = 424401120. Its totient is φ = 417690528.

The previous prime is 421040017. The next prime is 421040069. The reversal of 421040041 is 140040124.

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 421040041 - 2⁹ = 421039529 is a prime.

It is a super-2 number, since 2×421040041² = 354549432250563362, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 421039997 and 421040024.

It is not an unprimeable number, because it can be changed into a prime (421040141) 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, 79230 + ... + 84376.

It is an arithmetic number, because the mean of its divisors is an integer number (53050140).

Almost surely, 2^421040041 is an apocalyptic number.

It is an amenable number.

421040041 is a deficient number, since it is larger than the sum of its proper divisors (3361079).

421040041 is a wasteful number, since it uses less digits than its factorization.

421040041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5783.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 421040041 is about 20519.2602449504. The cubic root of 421040041 is about 749.5048826986.

Adding to 421040041 its reverse (140040124), we get a palindrome (561080165).

The spelling of 421040041 in words is "four hundred twenty-one million, forty thousand, forty-one".