421204402235244 has 24 divisors (see below), whose sum is σ = 984007361152368. Its totient is φ = 140230454658880.

The previous prime is 421204402235231. The next prime is 421204402235249. The reversal of 421204402235244 is 442532204402124.

It is not an unprimeable number, because it can be changed into a prime (421204402235249) 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, 21376583847 + ... + 21376603550.

It is an arithmetic number, because the mean of its divisors is an integer number (41000306714682).

Almost surely, 2^{421204402235244} is an apocalyptic number.

It is an amenable number.

421204402235244 is an abundant number, since it is smaller than the sum of its proper divisors (562802958917124).

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

421204402235244 is a wasteful number, since it uses less digits than its factorization.

421204402235244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42753188225 (or 42753188223 counting only the distinct ones).

The product of its (nonzero) digits is 491520, while the sum is 39.

Adding to 421204402235244 its reverse (442532204402124), we get a palindrome (863736606637368).

The spelling of 421204402235244 in words is "four hundred twenty-one trillion, two hundred four billion, four hundred two million, two hundred thirty-five thousand, two hundred forty-four".