421421379380 has 24 divisors (see below), whose sum is σ = 885128752032. Its totient is φ = 168541150752.

The previous prime is 421421379367. The next prime is 421421379413. The reversal of 421421379380 is 83973124124.

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, 1586222 + ... + 1832741.

It is an arithmetic number, because the mean of its divisors is an integer number (36880364668).

Almost surely, 2^421421379380 is an apocalyptic number.

It is an amenable number.

421421379380 is an abundant number, since it is smaller than the sum of its proper divisors (463707372652).

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

421421379380 is a wasteful number, since it uses less digits than its factorization.

421421379380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3425135 (or 3425133 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 44.

The spelling of 421421379380 in words is "four hundred twenty-one billion, four hundred twenty-one million, three hundred seventy-nine thousand, three hundred eighty".