43573920 has 96 divisors (see below), whose sum is σ = 147837312. Its totient is φ = 10724352.

The previous prime is 43573909. The next prime is 43573927. The reversal of 43573920 is 2937534.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (43573927) 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, 2749 + ... + 9731.

It is an arithmetic number, because the mean of its divisors is an integer number (1539972).

Almost surely, 2^43573920 is an apocalyptic number.

43573920 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 43573920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73918656).

43573920 is an abundant number, since it is smaller than the sum of its proper divisors (104263392).

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

43573920 is a wasteful number, since it uses less digits than its factorization.

43573920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7014 (or 7006 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 33.

The square root of 43573920 is about 6601.0544612206. The cubic root of 43573920 is about 351.8915816236.

The spelling of 43573920 in words is "forty-three million, five hundred seventy-three thousand, nine hundred twenty".