421749512960 has 144 divisors (see below), whose sum is σ = 1070242782336. Its totient is φ = 158687821824.

The previous prime is 421749512959. The next prime is 421749512963. The reversal of 421749512960 is 69215947124.

It is a junction number, because it is equal to n+sod(n) for n = 421749512899 and 421749512908.

It is not an unprimeable number, because it can be changed into a prime (421749512963) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49456217 + ... + 49464743.

It is an arithmetic number, because the mean of its divisors is an integer number (7432241544).

Almost surely, 2^421749512960 is an apocalyptic number.

421749512960 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421749512960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (535121391168).

421749512960 is an abundant number, since it is smaller than the sum of its proper divisors (648493269376).

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

421749512960 is a wasteful number, since it uses less digits than its factorization.

421749512960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10838 (or 10824 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 50.

The spelling of 421749512960 in words is "four hundred twenty-one billion, seven hundred forty-nine million, five hundred twelve thousand, nine hundred sixty".