43275520 has 36 divisors (see below), whose sum is σ = 103661460. Its totient is φ = 17309696.

The previous prime is 43275509. The next prime is 43275527. The reversal of 43275520 is 2557234.

It can be written as a sum of positive squares in 2 ways, for example, as 19927296 + 23348224 = 4464^2 + 4832^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43275527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15625 + ... + 18184.

It is an arithmetic number, because the mean of its divisors is an integer number (2879485).

Almost surely, 2^43275520 is an apocalyptic number.

43275520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43275520 is an abundant number, since it is smaller than the sum of its proper divisors (60385940).

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

43275520 is an equidigital number, since it uses as much as digits as its factorization.

43275520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33830 (or 33816 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 43275520 is about 6578.4131825236. The cubic root of 43275520 is about 351.0864742041.

The spelling of 43275520 in words is "forty-three million, two hundred seventy-five thousand, five hundred twenty".