421595628244 has 24 divisors (see below), whose sum is σ = 843205785408. Its totient is φ = 180680727360.

The previous prime is 421595628227. The next prime is 421595628253. The reversal of 421595628244 is 442826595124.

It is a junction number, because it is equal to n+sod(n) for n = 421595628191 and 421595628200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2368047 + ... + 2539849.

It is an arithmetic number, because the mean of its divisors is an integer number (35133574392).

Almost surely, 2^421595628244 is an apocalyptic number.

It is an amenable number.

421595628244 is an abundant number, since it is smaller than the sum of its proper divisors (421610157164).

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

421595628244 is a wasteful number, since it uses less digits than its factorization.

421595628244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259455 (or 259453 counting only the distinct ones).

The product of its digits is 5529600, while the sum is 52.

The spelling of 421595628244 in words is "four hundred twenty-one billion, five hundred ninety-five million, six hundred twenty-eight thousand, two hundred forty-four".