428906012392 has 128 divisors (see below), whose sum is σ = 965667225600. Its totient is φ = 176024620800.

The previous prime is 428906012377. The next prime is 428906012399. The reversal of 428906012392 is 293210609824.

It is not an unprimeable number, because it can be changed into a prime (428906012399) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10294659 + ... + 10336237.

It is an arithmetic number, because the mean of its divisors is an integer number (7544275200).

Almost surely, 2^428906012392 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 428906012392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (482833612800).

428906012392 is an abundant number, since it is smaller than the sum of its proper divisors (536761213208).

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

428906012392 is a wasteful number, since it uses less digits than its factorization.

428906012392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41807 (or 41803 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 46.

The spelling of 428906012392 in words is "four hundred twenty-eight billion, nine hundred six million, twelve thousand, three hundred ninety-two".