428441522 has 4 divisors (see below), whose sum is σ = 642662286. Its totient is φ = 214220760.

The previous prime is 428441479. The next prime is 428441527. The reversal of 428441522 is 225144824.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 417425761 + 11015761 = 20431^2 + 3319^2 .

It is not an unprimeable number, because it can be changed into a prime (428441527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107110379 + ... + 107110382.

Almost surely, 2^428441522 is an apocalyptic number.

428441522 is a deficient number, since it is larger than the sum of its proper divisors (214220764).

428441522 is a wasteful number, since it uses less digits than its factorization.

428441522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214220763.

The product of its digits is 20480, while the sum is 32.

The square root of 428441522 is about 20698.8290006947. The cubic root of 428441522 is about 753.8712557543.

The spelling of 428441522 in words is "four hundred twenty-eight million, four hundred forty-one thousand, five hundred twenty-two".