428828622 has 32 divisors (see below), whose sum is σ = 866557440. Its totient is φ = 141466560.

The previous prime is 428828591. The next prime is 428828623. The reversal of 428828622 is 226828824.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428828623) 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, 358858 + ... + 360050.

It is an arithmetic number, because the mean of its divisors is an integer number (27079920).

Almost surely, 2^428828622 is an apocalyptic number.

428828622 is an abundant number, since it is smaller than the sum of its proper divisors (437728818).

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

428828622 is a wasteful number, since it uses less digits than its factorization.

428828622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1768.

The product of its digits is 196608, while the sum is 42.

The square root of 428828622 is about 20708.1776600453. The cubic root of 428828622 is about 754.0982301129.

The spelling of 428828622 in words is "four hundred twenty-eight million, eight hundred twenty-eight thousand, six hundred twenty-two".