43798566420 has 288 divisors, whose sum is σ = 161093028096. Its totient is φ = 9403084800.

The previous prime is 43798566419. The next prime is 43798566451. The reversal of 43798566420 is 2466589734.

43798566420 is a `hidden beast` number, since 4 + 3 + 79 + 8 + 566 + 4 + 2 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 12229030 + ... + 12232610.

It is an arithmetic number, because the mean of its divisors is an integer number (559350792).

Almost surely, 2^43798566420 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 43798566420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80546514048).

43798566420 is an abundant number, since it is smaller than the sum of its proper divisors (117294461676).

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

43798566420 is a wasteful number, since it uses less digits than its factorization.

43798566420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4191 (or 4186 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 54.

It can be divided in two parts, 437985 and 66420, that added together give a palindrome (504405).

The spelling of 43798566420 in words is "forty-three billion, seven hundred ninety-eight million, five hundred sixty-six thousand, four hundred twenty".