435221028 has 144 divisors (see below), whose sum is σ = 1253371392. Its totient is φ = 127195200.

The previous prime is 435221023. The next prime is 435221053. The reversal of 435221028 is 820122534.

435221028 is a `hidden beast` number, since 435 + 221 + 0 + 2 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 435220992 and 435221010.

It is not an unprimeable number, because it can be changed into a prime (435221021) 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, 1485250 + ... + 1485542.

It is an arithmetic number, because the mean of its divisors is an integer number (8703968).

Almost surely, 2^435221028 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 435221028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (626685696).

435221028 is an abundant number, since it is smaller than the sum of its proper divisors (818150364).

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

435221028 is a wasteful number, since it uses less digits than its factorization.

435221028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367 (or 340 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 435221028 is about 20861.9516824289. The cubic root of 435221028 is about 757.8267949177.

The spelling of 435221028 in words is "four hundred thirty-five million, two hundred twenty-one thousand, twenty-eight".