43228620 has 144 divisors (see below), whose sum is σ = 143381280. Its totient is φ = 10810368.

The previous prime is 43228609. The next prime is 43228621. The reversal of 43228620 is 2682234.

43228620 is a `hidden beast` number, since 4 + 32 + 2 + 8 + 620 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (43228621) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 155922 + ... + 156198.

Almost surely, 2^43228620 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43228620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71690640).

43228620 is an abundant number, since it is smaller than the sum of its proper divisors (100152660).

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

43228620 is a wasteful number, since it uses less digits than its factorization.

43228620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329 (or 304 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 43228620 is about 6574.8475267492. The cubic root of 43228620 is about 350.9595979503.

The spelling of 43228620 in words is "forty-three million, two hundred twenty-eight thousand, six hundred twenty".