43360081920 has 384 divisors, whose sum is σ = 159134976000. Its totient is φ = 11187486720.

The previous prime is 43360081879. The next prime is 43360081987. The reversal of 43360081920 is 2918006334.

43360081920 is a `hidden beast` number, since 4 + 33 + 600 + 8 + 19 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

It is a super-2 number, since 2×43360081920² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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, 8568351 + ... + 8573409.

It is an arithmetic number, because the mean of its divisors is an integer number (414414000).

Almost surely, 2^43360081920 is an apocalyptic number.

43360081920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43360081920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79567488000).

43360081920 is an abundant number, since it is smaller than the sum of its proper divisors (115774894080).

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

43360081920 is a wasteful number, since it uses less digits than its factorization.

43360081920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5126 (or 5100 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The spelling of 43360081920 in words is "forty-three billion, three hundred sixty million, eighty-one thousand, nine hundred twenty".