4124121240 has 128 divisors (see below), whose sum is σ = 12629260800. Its totient is φ = 1077073920.

The previous prime is 4124121217. The next prime is 4124121241. The reversal of 4124121240 is 421214214.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4124121241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2200944 + ... + 2202816.

It is an arithmetic number, because the mean of its divisors is an integer number (98666100).

Almost surely, 2^4124121240 is an apocalyptic number.

4124121240 is a gapful number since it is divisible by the number (40) 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 4124121240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6314630400).

4124121240 is an abundant number, since it is smaller than the sum of its proper divisors (8505139560).

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

4124121240 is a wasteful number, since it uses less digits than its factorization.

4124121240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2257 (or 2253 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 4124121240 is about 64219.3213916186. The cubic root of 4124121240 is about 1603.6532719455.

Adding to 4124121240 its reverse (421214214), we get a palindrome (4545335454).

It can be divided in two parts, 41241 and 21240, that added together give a triangular number (62481 = T₃₅₃).

The spelling of 4124121240 in words is "four billion, one hundred twenty-four million, one hundred twenty-one thousand, two hundred forty".