43528228 has 12 divisors (see below), whose sum is σ = 80655372. Its totient is φ = 20483840.

The previous prime is 43528201. The next prime is 43528229. The reversal of 43528228 is 82282534.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 40678884 + 2849344 = 6378^2 + 1688^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 43528193 and 43528202.

It is not an unprimeable number, because it can be changed into a prime (43528229) 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, 319993 + ... + 320128.

It is an arithmetic number, because the mean of its divisors is an integer number (6721281).

Almost surely, 2^43528228 is an apocalyptic number.

It is an amenable number.

43528228 is a deficient number, since it is larger than the sum of its proper divisors (37127144).

43528228 is a wasteful number, since it uses less digits than its factorization.

43528228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640142 (or 640140 counting only the distinct ones).

The product of its digits is 30720, while the sum is 34.

The square root of 43528228 is about 6597.5925912411. The cubic root of 43528228 is about 351.7685397254.

It can be divided in two parts, 4352 and 8228, that multiplied together give a square (35808256 = 5984²).

The spelling of 43528228 in words is "forty-three million, five hundred twenty-eight thousand, two hundred twenty-eight".