43427280 has 160 divisors (see below), whose sum is σ = 149990400. Its totient is φ = 10321920.

The previous prime is 43427261. The next prime is 43427281. The reversal of 43427280 is 8272434.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43427281) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 96496 + ... + 96944.

It is an arithmetic number, because the mean of its divisors is an integer number (937440).

Almost surely, 2^43427280 is an apocalyptic number.

43427280 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 43427280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74995200).

43427280 is an abundant number, since it is smaller than the sum of its proper divisors (106563120).

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

43427280 is a wasteful number, since it uses less digits than its factorization.

43427280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509 (or 503 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 43427280 is about 6589.9377842283. The cubic root of 43427280 is about 351.4963958873.

The spelling of 43427280 in words is "forty-three million, four hundred twenty-seven thousand, two hundred eighty".