43875920 has 80 divisors (see below), whose sum is σ = 112974912. Its totient is φ = 15713280.

The previous prime is 43875901. The next prime is 43875967. The reversal of 43875920 is 2957834.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent 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, 63899 + ... + 64581.

Almost surely, 2^43875920 is an apocalyptic number.

43875920 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 43875920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56487456).

43875920 is an abundant number, since it is smaller than the sum of its proper divisors (69098992).

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

43875920 is a wasteful number, since it uses less digits than its factorization.

43875920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780 (or 774 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 43875920 is about 6623.8900957066. The cubic root of 43875920 is about 352.7026683579.

The spelling of 43875920 in words is "forty-three million, eight hundred seventy-five thousand, nine hundred twenty".