428554224 has 240 divisors, whose sum is σ = 1472852160. Its totient is φ = 113541120.

The previous prime is 428554187. The next prime is 428554249. The reversal of 428554224 is 422455824.

428554224 is a `hidden beast` number, since 428 + 5 + 5 + 4 + 224 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1524964 + ... + 1525244.

It is an arithmetic number, because the mean of its divisors is an integer number (6136884).

Almost surely, 2^428554224 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 428554224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (736426080).

428554224 is an abundant number, since it is smaller than the sum of its proper divisors (1044297936).

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

428554224 is a wasteful number, since it uses less digits than its factorization.

428554224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408 (or 399 counting only the distinct ones).

The product of its digits is 102400, while the sum is 36.

The square root of 428554224 is about 20701.5512462231. The cubic root of 428554224 is about 753.9373521721.

The spelling of 428554224 in words is "four hundred twenty-eight million, five hundred fifty-four thousand, two hundred twenty-four".