428775480 has 288 divisors, whose sum is σ = 1643241600. Its totient is φ = 96671232.

The previous prime is 428775463. The next prime is 428775481. The reversal of 428775480 is 84577824.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428775481) by changing a digit.

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 71 ways as a sum of consecutive naturals, for example, 1922649 + ... + 1922871.

It is an arithmetic number, because the mean of its divisors is an integer number (5705700).

Almost surely, 2^428775480 is an apocalyptic number.

428775480 is a gapful number since it is divisible by the number (40) 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 428775480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (821620800).

428775480 is an abundant number, since it is smaller than the sum of its proper divisors (1214466120).

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

428775480 is a wasteful number, since it uses less digits than its factorization.

428775480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363 (or 349 counting only the distinct ones).

The product of its (nonzero) digits is 501760, while the sum is 45.

The square root of 428775480 is about 20706.8945040052. The cubic root of 428775480 is about 754.0670786291.

The spelling of 428775480 in words is "four hundred twenty-eight million, seven hundred seventy-five thousand, four hundred eighty".