421304041 has 4 divisors (see below), whose sum is σ = 439621632. Its totient is φ = 402986452.

The previous prime is 421304029. The next prime is 421304053. The reversal of 421304041 is 140403124.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (421304029) and next prime (421304053).

It is a cyclic number.

It is not a de Polignac number, because 421304041 - 2²¹ = 419206889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (421304011) 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, 9158761 + ... + 9158806.

It is an arithmetic number, because the mean of its divisors is an integer number (109905408).

Almost surely, 2^421304041 is an apocalyptic number.

It is an amenable number.

421304041 is a deficient number, since it is larger than the sum of its proper divisors (18317591).

421304041 is a wasteful number, since it uses less digits than its factorization.

421304041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18317590.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 421304041 is about 20525.6922173163. The cubic root of 421304041 is about 749.6615011736.

Adding to 421304041 its reverse (140403124), we get a palindrome (561707165).

The spelling of 421304041 in words is "four hundred twenty-one million, three hundred four thousand, forty-one".