428030892 has 96 divisors (see below), whose sum is σ = 1135968960. Its totient is φ = 141087744.

The previous prime is 428030887. The next prime is 428030893. The reversal of 428030892 is 298030824.

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

It is not an unprimeable number, because it can be changed into a prime (428030893) 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, 988308 + ... + 988740.

It is an arithmetic number, because the mean of its divisors is an integer number (11833010).

Almost surely, 2^428030892 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 428030892, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (567984480).

428030892 is an abundant number, since it is smaller than the sum of its proper divisors (707938068).

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

428030892 is a wasteful number, since it uses less digits than its factorization.

428030892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571 (or 551 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 428030892 is about 20688.9074626960. The cubic root of 428030892 is about 753.6303352023.

The spelling of 428030892 in words is "four hundred twenty-eight million, thirty thousand, eight hundred ninety-two".