428240358 has 192 divisors, whose sum is σ = 1238694912. Its totient is φ = 107775360.

The previous prime is 428240333. The next prime is 428240369. The reversal of 428240358 is 853042824.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1016988 + ... + 1017408.

It is an arithmetic number, because the mean of its divisors is an integer number (6451536).

Almost surely, 2^428240358 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 428240358, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (619347456).

428240358 is an abundant number, since it is smaller than the sum of its proper divisors (810454554).

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

428240358 is a wasteful number, since it uses less digits than its factorization.

428240358 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481 (or 469 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 36.

The square root of 428240358 is about 20693.9691214615. The cubic root of 428240358 is about 753.7532501531.

The spelling of 428240358 in words is "four hundred twenty-eight million, two hundred forty thousand, three hundred fifty-eight".