428102580 has 96 divisors (see below), whose sum is σ = 1247178240. Its totient is φ = 109624320.

The previous prime is 428102573. The next prime is 428102603. The reversal of 428102580 is 85201824.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 174160 + ... + 176600.

It is an arithmetic number, because the mean of its divisors is an integer number (12991440).

Almost surely, 2^428102580 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 428102580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (623589120).

428102580 is an abundant number, since it is smaller than the sum of its proper divisors (819075660).

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

428102580 is a wasteful number, since it uses less digits than its factorization.

428102580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2569 (or 2567 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 428102580 is about 20690.6399127722. The cubic root of 428102580 is about 753.6724063367.

The spelling of 428102580 in words is "four hundred twenty-eight million, one hundred two thousand, five hundred eighty".