154440022 has 16 divisors (see below), whose sum is σ = 261435600. Its totient is φ = 67779040.

The previous prime is 154440017. The next prime is 154440031. The reversal of 154440022 is 220044451.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 154439975 and 154440002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120397 + ... + 121672.

It is an arithmetic number, because the mean of its divisors is an integer number (16339725).

Almost surely, 2^154440022 is an apocalyptic number.

154440022 is a deficient number, since it is larger than the sum of its proper divisors (106995578).

154440022 is a wasteful number, since it uses less digits than its factorization.

154440022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242111.

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

The square root of 154440022 is about 12427.3899914664. The cubic root of 154440022 is about 536.5208676803.

Adding to 154440022 its reverse (220044451), we get a palindrome (374484473).

The spelling of 154440022 in words is "one hundred fifty-four million, four hundred forty thousand, twenty-two".