421304991744 has 684 divisors, whose sum is σ = 1457639494584. Its totient is φ = 107281907712.

The previous prime is 421304991739. The next prime is 421304991839. The reversal of 421304991744 is 447199403124.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 421304991693 and 421304991702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 14527758322 + ... + 14527758350.

Almost surely, 2^421304991744 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 421304991744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (728819747292).

421304991744 is an abundant number, since it is smaller than the sum of its proper divisors (1036334502840).

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

421304991744 is an frugal number, since it uses more digits than its factorization.

421304991744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124 (or 54 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 48.

The spelling of 421304991744 in words is "four hundred twenty-one billion, three hundred four million, nine hundred ninety-one thousand, seven hundred forty-four".