2146243300 has 18 divisors (see below), whose sum is σ = 4657348178. Its totient is φ = 858497280.

The previous prime is 2146243291. The next prime is 2146243301. The reversal of 2146243300 is 33426412.

It can be written as a sum of positive squares in 3 ways, for example, as 7365796 + 2138877504 = 2714^2 + 46248^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (2146243301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10731117 + ... + 10731316.

Almost surely, 2^2146243300 is an apocalyptic number.

2146243300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2146243300 is an abundant number, since it is smaller than the sum of its proper divisors (2511104878).

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

2146243300 is a wasteful number, since it uses less digits than its factorization.

2146243300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21462447 (or 21462440 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 2146243300 is about 46327.5652284900. The cubic root of 2146243300 is about 1289.9107163333.

Adding to 2146243300 its reverse (33426412), we get a palindrome (2179669712).

The spelling of 2146243300 in words is "two billion, one hundred forty-six million, two hundred forty-three thousand, three hundred".