43315205420 has 48 divisors (see below), whose sum is σ = 97266300768. Its totient is φ = 16145433600.

The previous prime is 43315205419. The next prime is 43315205443. The reversal of 43315205420 is 2450251334.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 596342 + ... + 665021.

It is an arithmetic number, because the mean of its divisors is an integer number (2026381266).

Almost surely, 2^43315205420 is an apocalyptic number.

It is an amenable number.

43315205420 is an abundant number, since it is smaller than the sum of its proper divisors (53951095348).

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

43315205420 is a wasteful number, since it uses less digits than its factorization.

43315205420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1261490 (or 1261488 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 43315205420 its reverse (2450251334), we get a palindrome (45765456754).

The spelling of 43315205420 in words is "forty-three billion, three hundred fifteen million, two hundred five thousand, four hundred twenty".