306313532420 has 72 divisors (see below), whose sum is σ = 749592043200. Its totient is φ = 104837664960.

The previous prime is 306313532407. The next prime is 306313532431. The reversal of 306313532420 is 24235313603.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 285881 + ... + 833279.

It is an arithmetic number, because the mean of its divisors is an integer number (10411000600).

Almost surely, 2^306313532420 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 306313532420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (374796021600).

306313532420 is an abundant number, since it is smaller than the sum of its proper divisors (443278510780).

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

306313532420 is a wasteful number, since it uses less digits than its factorization.

306313532420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547993 (or 547984 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 32.

The spelling of 306313532420 in words is "three hundred six billion, three hundred thirteen million, five hundred thirty-two thousand, four hundred twenty".