43217232420 has 96 divisors (see below), whose sum is σ = 129465463680. Its totient is φ = 10739036160.

The previous prime is 43217232419. The next prime is 43217232451. The reversal of 43217232420 is 2423271234.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 241197 + ... + 380276.

It is an arithmetic number, because the mean of its divisors is an integer number (1348598580).

Almost surely, 2^43217232420 is an apocalyptic number.

It is an amenable number.

43217232420 is an abundant number, since it is smaller than the sum of its proper divisors (86248231260).

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

43217232420 is a wasteful number, since it uses less digits than its factorization.

43217232420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621565 (or 621563 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 30.

The spelling of 43217232420 in words is "forty-three billion, two hundred seventeen million, two hundred thirty-two thousand, four hundred twenty".