428585214420 has 96 divisors (see below), whose sum is σ = 1454592263040. Its totient is φ = 103899444480.

The previous prime is 428585214383. The next prime is 428585214461. The reversal of 428585214420 is 24412585824.

It is a happy number.

428585214420 is a `hidden beast` number, since 4 + 2 + 8 + 5 + 8 + 5 + 214 + 420 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36070257 + ... + 36082136.

It is an arithmetic number, because the mean of its divisors is an integer number (15152002740).

Almost surely, 2^428585214420 is an apocalyptic number.

It is an amenable number.

428585214420 is an abundant number, since it is smaller than the sum of its proper divisors (1026007048620).

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

428585214420 is a wasteful number, since it uses less digits than its factorization.

428585214420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72152422 (or 72152414 counting only the distinct ones).

The product of its (nonzero) digits is 819200, while the sum is 45.

The spelling of 428585214420 in words is "four hundred twenty-eight billion, five hundred eighty-five million, two hundred fourteen thousand, four hundred twenty".