2124203240 has 32 divisors (see below), whose sum is σ = 4781673000. Its totient is φ = 849287424.

The previous prime is 2124203239. The next prime is 2124203243. The reversal of 2124203240 is 423024212.

It can be written as a sum of positive squares in 4 ways, for example, as 1186251364 + 937951876 = 34442^2 + 30626^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (2124203243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84446 + ... + 106674.

Almost surely, 2^2124203240 is an apocalyptic number.

2124203240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2124203240 is an abundant number, since it is smaller than the sum of its proper divisors (2657469760).

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

2124203240 is a wasteful number, since it uses less digits than its factorization.

2124203240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24629 (or 24625 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 2124203240 is about 46089.0794006563. The cubic root of 2124203240 is about 1285.4800933351.

Adding to 2124203240 its reverse (423024212), we get a palindrome (2547227452).

The spelling of 2124203240 in words is "two billion, one hundred twenty-four million, two hundred three thousand, two hundred forty".