421439595708 has 96 divisors (see below), whose sum is σ = 1050489538560. Its totient is φ = 131209585920.

The previous prime is 421439595697. The next prime is 421439595751. The reversal of 421439595708 is 807595934124.

It is a super-2 number, since 2×421439595708² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35670010 + ... + 35681822.

It is an arithmetic number, because the mean of its divisors is an integer number (10942599360).

Almost surely, 2^421439595708 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 421439595708, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (525244769280).

421439595708 is an abundant number, since it is smaller than the sum of its proper divisors (629049942852).

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

421439595708 is a wasteful number, since it uses less digits than its factorization.

421439595708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15187 (or 15185 counting only the distinct ones).

The product of its (nonzero) digits is 10886400, while the sum is 57.

The spelling of 421439595708 in words is "four hundred twenty-one billion, four hundred thirty-nine million, five hundred ninety-five thousand, seven hundred eight".