4022154 has 24 divisors (see below), whose sum is σ = 8836932. Its totient is φ = 1321920.

The previous prime is 4022153. The next prime is 4022173. The reversal of 4022154 is 4512204.

It can be written as a sum of positive squares in 2 ways, for example, as 3629025 + 393129 = 1905^2 + 627^2 .

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

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (4022153) 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, 217 + ... + 2844.

Almost surely, 2^4022154 is an apocalyptic number.

4022154 is an abundant number, since it is smaller than the sum of its proper divisors (4814778).

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

4022154 is a wasteful number, since it uses less digits than its factorization.

4022154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3142 (or 3139 counting only the distinct ones).

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

The square root of 4022154 is about 2005.5308524179. The cubic root of 4022154 is about 159.0326265074.

Adding to 4022154 its reverse (4512204), we get a palindrome (8534358).

It can be divided in two parts, 402 and 2154, that added together give a triangular number (2556 = T₇₁).

The spelling of 4022154 in words is "four million, twenty-two thousand, one hundred fifty-four".