428403204 has 18 divisors (see below), whose sum is σ = 1082908190. Its totient is φ = 142801056.

The previous prime is 428403197. The next prime is 428403223. The reversal of 428403204 is 402304824.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 283248900 + 145154304 = 16830^2 + 12048^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5950009 + ... + 5950080.

Almost surely, 2^428403204 is an apocalyptic number.

It is an amenable number.

428403204 is an abundant number, since it is smaller than the sum of its proper divisors (654504986).

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

428403204 is a wasteful number, since it uses less digits than its factorization.

428403204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11900099 (or 11900094 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

The square root of 428403204 is about 20697.9033720810. The cubic root of 428403204 is about 753.8487807307.

The spelling of 428403204 in words is "four hundred twenty-eight million, four hundred three thousand, two hundred four".