421241863 has 8 divisors (see below), whose sum is σ = 484883840. Its totient is φ = 358466040.

The previous prime is 421241839. The next prime is 421241903. The reversal of 421241863 is 368142124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-421241863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421241813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 215493 + ... + 217438.

It is an arithmetic number, because the mean of its divisors is an integer number (60610480).

Almost surely, 2^421241863 is an apocalyptic number.

421241863 is a deficient number, since it is larger than the sum of its proper divisors (63641977).

421241863 is a wasteful number, since it uses less digits than its factorization.

421241863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433077.

The product of its digits is 9216, while the sum is 31.

The square root of 421241863 is about 20524.1775231067. The cubic root of 421241863 is about 749.6246198547.

Adding to 421241863 its reverse (368142124), we get a palindrome (789383987).

The spelling of 421241863 in words is "four hundred twenty-one million, two hundred forty-one thousand, eight hundred sixty-three".