428535620 has 48 divisors (see below), whose sum is σ = 913156608. Its totient is φ = 168912000.

The previous prime is 428535617. The next prime is 428535629. The reversal of 428535620 is 26535824.

It is not an unprimeable number, because it can be changed into a prime (428535629) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 570245 + ... + 570995.

It is an arithmetic number, because the mean of its divisors is an integer number (19024096).

Almost surely, 2^428535620 is an apocalyptic number.

It is an amenable number.

428535620 is an abundant number, since it is smaller than the sum of its proper divisors (484620988).

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

428535620 is a wasteful number, since it uses less digits than its factorization.

428535620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1140 (or 1138 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

The square root of 428535620 is about 20701.1019030389. The cubic root of 428535620 is about 753.9264422703.

The spelling of 428535620 in words is "four hundred twenty-eight million, five hundred thirty-five thousand, six hundred twenty".