428492469528 has 192 divisors, whose sum is σ = 1298323222560. Its totient is φ = 131892074496.

The previous prime is 428492469497. The next prime is 428492469529. The reversal of 428492469528 is 825964294824.

428492469528 is a `hidden beast` number, since 4 + 2 + 8 + 49 + 2 + 4 + 69 + 528 = 666.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428492469529) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1629226 + ... + 1873862.

Almost surely, 2^428492469528 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 428492469528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (649161611280).

428492469528 is an abundant number, since it is smaller than the sum of its proper divisors (869830753032).

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

428492469528 is a wasteful number, since it uses less digits than its factorization.

428492469528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244728 (or 244712 counting only the distinct ones).

The product of its digits is 79626240, while the sum is 63.

The spelling of 428492469528 in words is "four hundred twenty-eight billion, four hundred ninety-two million, four hundred sixty-nine thousand, five hundred twenty-eight".