43238981980 has 48 divisors (see below), whose sum is σ = 94118040576. Its totient is φ = 16674926400.

The previous prime is 43238981977. The next prime is 43238981987. The reversal of 43238981980 is 8918983234.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43238981987) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 280296 + ... + 406255.

It is an arithmetic number, because the mean of its divisors is an integer number (1960792512).

Almost surely, 2^43238981980 is an apocalyptic number.

It is an amenable number.

43238981980 is an abundant number, since it is smaller than the sum of its proper divisors (50879058596).

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

43238981980 is a wasteful number, since it uses less digits than its factorization.

43238981980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686674 (or 686672 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 55.

The spelling of 43238981980 in words is "forty-three billion, two hundred thirty-eight million, nine hundred eighty-one thousand, nine hundred eighty".