421230442404340 has 48 divisors (see below), whose sum is σ = 889836650398080. Its totient is φ = 167491964073600.

The previous prime is 421230442404313. The next prime is 421230442404397. The reversal of 421230442404340 is 43404244032124.

It is a self number, because there is not a number n which added to its sum of digits gives 421230442404340.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12528865 + ... + 31613815.

It is an arithmetic number, because the mean of its divisors is an integer number (18538263549960).

Almost surely, 2^{421230442404340} is an apocalyptic number.

It is an amenable number.

421230442404340 is an abundant number, since it is smaller than the sum of its proper divisors (468606207993740).

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

421230442404340 is a wasteful number, since it uses less digits than its factorization.

421230442404340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19091512 (or 19091510 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 37.

Adding to 421230442404340 its reverse (43404244032124), we get a palindrome (464634686436464).

The spelling of 421230442404340 in words is "four hundred twenty-one trillion, two hundred thirty billion, four hundred forty-two million, four hundred four thousand, three hundred forty".