154422 has 24 divisors (see below), whose sum is σ = 350064. Its totient is φ = 49104.

The previous prime is 154417. The next prime is 154423. The reversal of 154422 is 224451.

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

It is a junction number, because it is equal to n+sod(n) for n = 154395 and 154404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 228 + ... + 600.

It is an arithmetic number, because the mean of its divisors is an integer number (14586).

2¹⁵⁴⁴²² is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 154422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175032).

154422 is an abundant number, since it is smaller than the sum of its proper divisors (195642).

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

154422 is a wasteful number, since it uses less digits than its factorization.

154422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404 (or 401 counting only the distinct ones).

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

The square root of 154422 is about 392.9656473536. The cubic root of 154422 is about 53.6499997539.

Adding to 154422 its reverse (224451), we get a palindrome (378873).

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

The spelling of 154422 in words is "one hundred fifty-four thousand, four hundred twenty-two".