154642224 has 80 divisors (see below), whose sum is σ = 439971840. Its totient is φ = 46414080.

The previous prime is 154642199. The next prime is 154642247. The reversal of 154642224 is 422246451.

154642224 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 154642191 and 154642200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56209 + ... + 58895.

It is an arithmetic number, because the mean of its divisors is an integer number (5499648).

Almost surely, 2^154642224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 154642224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219985920).

154642224 is an abundant number, since it is smaller than the sum of its proper divisors (285329616).

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

154642224 is a wasteful number, since it uses less digits than its factorization.

154642224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2818 (or 2812 counting only the distinct ones).

The product of its digits is 15360, while the sum is 30.

The square root of 154642224 is about 12435.5226669409. The cubic root of 154642224 is about 536.7549138389.

Adding to 154642224 its reverse (422246451), we get a palindrome (576888675).

The spelling of 154642224 in words is "one hundred fifty-four million, six hundred forty-two thousand, two hundred twenty-four".