428202 has 12 divisors (see below), whose sum is σ = 927810. Its totient is φ = 142728.

The previous prime is 428177. The next prime is 428221. The reversal of 428202 is 202824.

It can be written as a sum of positive squares in only one way, i.e., 408321 + 19881 = 639^2 + 141^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 23789 = 428202 / (4 + 2 + 8 + 2 + 0 + 2).

It is a plaindrome in base 16.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11877 + ... + 11912.

2⁴²⁸²⁰² is an apocalyptic number.

428202 is an abundant number, since it is smaller than the sum of its proper divisors (499608).

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

428202 is a wasteful number, since it uses less digits than its factorization.

428202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23797 (or 23794 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 428202 is about 654.3714541451. The cubic root of 428202 is about 75.3730744622.

It can be divided in two parts, 428 and 202, that added together give a triangular number (630 = T₃₅).

The spelling of 428202 in words is "four hundred twenty-eight thousand, two hundred two".