421448911344 has 240 divisors, whose sum is σ = 1260564256224. Its totient is φ = 130985164800.

The previous prime is 421448911319. The next prime is 421448911357. The reversal of 421448911344 is 443119844124.

421448911344 is a `hidden beast` number, since 4 + 2 + 14 + 489 + 113 + 44 = 666.

It is a super-3 number, since 3×421448911344³ (a number of 36 digits) contains 333 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 421448911344.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 125392224 + ... + 125395584.

Almost surely, 2^421448911344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421448911344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (630282128112).

421448911344 is an abundant number, since it is smaller than the sum of its proper divisors (839115344880).

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

421448911344 is a wasteful number, since it uses less digits than its factorization.

421448911344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3856 (or 3847 counting only the distinct ones).

The product of its digits is 442368, while the sum is 45.

The spelling of 421448911344 in words is "four hundred twenty-one billion, four hundred forty-eight million, nine hundred eleven thousand, three hundred forty-four".