2124202340 has 24 divisors (see below), whose sum is σ = 4803965880. Its totient is φ = 784320768.

The previous prime is 2124202313. The next prime is 2124202351. The reversal of 2124202340 is 432024212.

It can be written as a sum of positive squares in 4 ways, for example, as 98596 + 2124103744 = 314^2 + 46088^2 .

It is a super-2 number, since 2×2124202340² = 9024471162522951200, which contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4084745 + ... + 4085264.

It is an arithmetic number, because the mean of its divisors is an integer number (200165245).

Almost surely, 2^2124202340 is an apocalyptic number.

2124202340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2124202340 is an abundant number, since it is smaller than the sum of its proper divisors (2679763540).

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

2124202340 is a wasteful number, since it uses less digits than its factorization.

2124202340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8170031 (or 8170029 counting only the distinct ones).

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

The square root of 2124202340 is about 46089.0696369541. The cubic root of 2124202340 is about 1285.4799117875.

Adding to 2124202340 its reverse (432024212), we get a palindrome (2556226552).

The spelling of 2124202340 in words is "two billion, one hundred twenty-four million, two hundred two thousand, three hundred forty".