428420860 has 24 divisors (see below), whose sum is σ = 1028210400. Its totient is φ = 146887104.

The previous prime is 428420827. The next prime is 428420869. The reversal of 428420860 is 68024824.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428420869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1529935 + ... + 1530214.

It is an arithmetic number, because the mean of its divisors is an integer number (42842100).

Almost surely, 2^428420860 is an apocalyptic number.

It is an amenable number.

428420860 is an abundant number, since it is smaller than the sum of its proper divisors (599789540).

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

428420860 is a wasteful number, since it uses less digits than its factorization.

428420860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3060165 (or 3060163 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 34.

The square root of 428420860 is about 20698.3298843168. The cubic root of 428420860 is about 753.8591368400.

The spelling of 428420860 in words is "four hundred twenty-eight million, four hundred twenty thousand, eight hundred sixty".