421304413244 has 48 divisors (see below), whose sum is σ = 866244140160. Its totient is φ = 176757647040.

The previous prime is 421304413241. The next prime is 421304413297. The reversal of 421304413244 is 442314403124.

It is a super-2 number, since 2×421304413244² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 421304413244.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421304413241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12074087 + ... + 12108929.

It is an arithmetic number, because the mean of its divisors is an integer number (18046752920).

Almost surely, 2^421304413244 is an apocalyptic number.

421304413244 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

421304413244 is an abundant number, since it is smaller than the sum of its proper divisors (444939726916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

421304413244 is a wasteful number, since it uses less digits than its factorization.

421304413244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56010 (or 56008 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 421304413244 its reverse (442314403124), we get a palindrome (863618816368).

The spelling of 421304413244 in words is "four hundred twenty-one billion, three hundred four million, four hundred thirteen thousand, two hundred forty-four".