2154234120 has 64 divisors (see below), whose sum is σ = 6490523520. Its totient is φ = 571989504.

The previous prime is 2154234097. The next prime is 2154234127. The reversal of 2154234120 is 214324512.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (2154234127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10564 + ... + 66483.

It is an arithmetic number, because the mean of its divisors is an integer number (101414430).

Almost surely, 2^2154234120 is an apocalyptic number.

2154234120 is a gapful number since it is divisible by the number (20) 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 2154234120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3245261760).

2154234120 is an abundant number, since it is smaller than the sum of its proper divisors (4336289400).

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

2154234120 is a wasteful number, since it uses less digits than its factorization.

2154234120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77294 (or 77290 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 2154234120 is about 46413.7277106677. The cubic root of 2154234120 is about 1291.5095842460.

Adding to 2154234120 its reverse (214324512), we get a palindrome (2368558632).

The spelling of 2154234120 in words is "two billion, one hundred fifty-four million, two hundred thirty-four thousand, one hundred twenty".