154422220 has 24 divisors (see below), whose sum is σ = 343363104. Its totient is φ = 58135296.

The previous prime is 154422211. The next prime is 154422227. The reversal of 154422220 is 22224451.

It is a super-3 number, since 3×154422220³ (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 154422191 and 154422200.

It is not an unprimeable number, because it can be changed into a prime (154422227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226752 + ... + 227431.

It is an arithmetic number, because the mean of its divisors is an integer number (14306796).

Almost surely, 2^154422220 is an apocalyptic number.

154422220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

154422220 is an abundant number, since it is smaller than the sum of its proper divisors (188940884).

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

154422220 is a wasteful number, since it uses less digits than its factorization.

154422220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454209 (or 454207 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 154422220 is about 12426.6737303270. The cubic root of 154422220 is about 536.5002523170.

Adding to 154422220 its reverse (22224451), we get a palindrome (176646671).

The spelling of 154422220 in words is "one hundred fifty-four million, four hundred twenty-two thousand, two hundred twenty".