2340163021 has 24 divisors (see below), whose sum is σ = 2748001464. Its totient is φ = 1986969600.

The previous prime is 2340163019. The next prime is 2340163039. The reversal of 2340163021 is 1203610432.

It can be written as a sum of positive squares in 4 ways, for example, as 376786921 + 1963376100 = 19411^2 + 44310^2 .

It is not a de Polignac number, because 2340163021 - 2¹ = 2340163019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2340162983 and 2340163001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2340163921) 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 23 ways as a sum of consecutive naturals, for example, 3337971 + ... + 3338671.

It is an arithmetic number, because the mean of its divisors is an integer number (114500061).

Almost surely, 2^2340163021 is an apocalyptic number.

It is an amenable number.

2340163021 is a deficient number, since it is larger than the sum of its proper divisors (407838443).

2340163021 is a wasteful number, since it uses less digits than its factorization.

2340163021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1261 (or 1254 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 2340163021 is about 48375.2314826503. The cubic root of 2340163021 is about 1327.6452238915.

Adding to 2340163021 its reverse (1203610432), we get a palindrome (3543773453).

The spelling of 2340163021 in words is "two billion, three hundred forty million, one hundred sixty-three thousand, twenty-one".