2124173730 has 128 divisors (see below), whose sum is σ = 6047654400. Its totient is φ = 467195904.

The previous prime is 2124173707. The next prime is 2124173741. The reversal of 2124173730 is 373714212.

It is a super-2 number, since 2×2124173730² = 9024228070444225800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3464904 + ... + 3465516.

It is an arithmetic number, because the mean of its divisors is an integer number (47247300).

Almost surely, 2^2124173730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2124173730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3023827200).

2124173730 is an abundant number, since it is smaller than the sum of its proper divisors (3923480670).

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

2124173730 is a wasteful number, since it uses less digits than its factorization.

2124173730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1228.

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 2124173730 is about 46088.7592586305. The cubic root of 2124173730 is about 1285.4741405630.

Adding to 2124173730 its reverse (373714212), we get a palindrome (2497887942).

The spelling of 2124173730 in words is "two billion, one hundred twenty-four million, one hundred seventy-three thousand, seven hundred thirty".