154222240 has 96 divisors (see below), whose sum is σ = 388221120. Its totient is φ = 57729024.

The previous prime is 154222231. The next prime is 154222267. The reversal of 154222240 is 42222451.

154222240 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 294619 + ... + 295141.

It is an arithmetic number, because the mean of its divisors is an integer number (4043970).

Almost surely, 2^154222240 is an apocalyptic number.

154222240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 154222240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194110560).

154222240 is an abundant number, since it is smaller than the sum of its proper divisors (233998880).

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

154222240 is a wasteful number, since it uses less digits than its factorization.

154222240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654 (or 646 counting only the distinct ones).

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

The square root of 154222240 is about 12418.6247225689. The cubic root of 154222240 is about 536.2685592619.

Adding to 154222240 its reverse (42222451), we get a palindrome (196444691).

The spelling of 154222240 in words is "one hundred fifty-four million, two hundred twenty-two thousand, two hundred forty".