428480286 has 48 divisors (see below), whose sum is σ = 974073744. Its totient is φ = 124892928.

The previous prime is 428480263. The next prime is 428480303. The reversal of 428480286 is 682084824.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20550 + ... + 35766.

It is an arithmetic number, because the mean of its divisors is an integer number (20293203).

Almost surely, 2^428480286 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 428480286, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (487036872).

428480286 is an abundant number, since it is smaller than the sum of its proper divisors (545593458).

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

428480286 is a wasteful number, since it uses less digits than its factorization.

428480286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15273 (or 15254 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 42.

The square root of 428480286 is about 20699.7653609890. The cubic root of 428480286 is about 753.8939910111.

The spelling of 428480286 in words is "four hundred twenty-eight million, four hundred eighty thousand, two hundred eighty-six".