428280204 has 48 divisors (see below), whose sum is σ = 1095405696. Its totient is φ = 129158400.

The previous prime is 428280191. The next prime is 428280241. The reversal of 428280204 is 402082824.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20164 + ... + 35540.

It is an arithmetic number, because the mean of its divisors is an integer number (22820952).

Almost surely, 2^428280204 is an apocalyptic number.

428280204 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 428280204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (547702848).

428280204 is an abundant number, since it is smaller than the sum of its proper divisors (667125492).

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

428280204 is a wasteful number, since it uses less digits than its factorization.

428280204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15606 (or 15604 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 30.

The square root of 428280204 is about 20694.9318433282. The cubic root of 428280204 is about 753.7766273056.

The spelling of 428280204 in words is "four hundred twenty-eight million, two hundred eighty thousand, two hundred four".