428825956 has 12 divisors (see below), whose sum is σ = 808172092. Its totient is φ = 197919648.

The previous prime is 428825939. The next prime is 428825959. The reversal of 428825956 is 659528824.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 45292900 + 383533056 = 6730^2 + 19584^2 .

It is not an unprimeable number, because it can be changed into a prime (428825959) 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, 4123275 + ... + 4123378.

Almost surely, 2^428825956 is an apocalyptic number.

It is an amenable number.

428825956 is a deficient number, since it is larger than the sum of its proper divisors (379346136).

428825956 is a wasteful number, since it uses less digits than its factorization.

428825956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8246670 (or 8246668 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 49.

The square root of 428825956 is about 20708.1132892400. The cubic root of 428825956 is about 754.0966673829.

The spelling of 428825956 in words is "four hundred twenty-eight million, eight hundred twenty-five thousand, nine hundred fifty-six".