428622 has 8 divisors (see below), whose sum is σ = 857256. Its totient is φ = 142872.

The previous prime is 428579. The next prime is 428629. The reversal of 428622 is 226824.

It is a sphenic number, since it is the product of 3 distinct primes.

428622 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 428592 and 428601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35713 + ... + 35724.

It is an arithmetic number, because the mean of its divisors is an integer number (107157).

2⁴²⁸⁶²² is an apocalyptic number.

428622 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

428622 is a wasteful number, since it uses less digits than its factorization.

428622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71442.

The product of its digits is 1536, while the sum is 24.

The square root of 428622 is about 654.6922941352. The cubic root of 428622 is about 75.3977095229.

The spelling of 428622 in words is "four hundred twenty-eight thousand, six hundred twenty-two".