422154 has 24 divisors (see below), whose sum is σ = 936000. Its totient is φ = 137448.

The previous prime is 422141. The next prime is 422183. The reversal of 422154 is 451224.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 597 + ... + 1095.

It is an arithmetic number, because the mean of its divisors is an integer number (39000).

2⁴²²¹⁵⁴ is an apocalyptic number.

422154 is an abundant number, since it is smaller than the sum of its proper divisors (513846).

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

422154 is a wasteful number, since it uses less digits than its factorization.

422154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554 (or 551 counting only the distinct ones).

The product of its digits is 320, while the sum is 18.

The square root of 422154 is about 649.7337916409. The cubic root of 422154 is about 75.0165296900.

Adding to 422154 its reverse (451224), we get a palindrome (873378).

It can be divided in two parts, 422 and 154, that added together give a square (576 = 24²).

The spelling of 422154 in words is "four hundred twenty-two thousand, one hundred fifty-four".