420155244304 has 20 divisors (see below), whose sum is σ = 814062070800. Its totient is φ = 210074709920.

The previous prime is 420155244253. The next prime is 420155244319. The reversal of 420155244304 is 403442551024.

It is a self number, because there is not a number n which added to its sum of digits gives 420155244304.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1453647 + ... + 1718545.

It is an arithmetic number, because the mean of its divisors is an integer number (40703103540).

Almost surely, 2^420155244304 is an apocalyptic number.

It is an amenable number.

420155244304 is a deficient number, since it is larger than the sum of its proper divisors (393906826496).

420155244304 is a wasteful number, since it uses less digits than its factorization.

420155244304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364038 (or 364032 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 34.

Adding to 420155244304 its reverse (403442551024), we get a palindrome (823597795328).

The spelling of 420155244304 in words is "four hundred twenty billion, one hundred fifty-five million, two hundred forty-four thousand, three hundred four".