2302143644 has 12 divisors (see below), whose sum is σ = 4037493768. Its totient is φ = 1148574000.

The previous prime is 2302143643. The next prime is 2302143659. The reversal of 2302143644 is 4463412032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2302143643) 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 3 ways as a sum of consecutive naturals, for example, 622382 + ... + 626069.

It is an arithmetic number, because the mean of its divisors is an integer number (336457814).

Almost surely, 2^2302143644 is an apocalyptic number.

It is an amenable number.

2302143644 is a deficient number, since it is larger than the sum of its proper divisors (1735350124).

2302143644 is a wasteful number, since it uses less digits than its factorization.

2302143644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1248916 (or 1248914 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 29.

The square root of 2302143644 is about 47980.6590617511. The cubic root of 2302143644 is about 1320.4160847771.

Adding to 2302143644 its reverse (4463412032), we get a palindrome (6765555676).

The spelling of 2302143644 in words is "two billion, three hundred two million, one hundred forty-three thousand, six hundred forty-four".