2143242008 has 8 divisors (see below), whose sum is σ = 4018578780. Its totient is φ = 1071621000.

The previous prime is 2143242007. The next prime is 2143242107. The reversal of 2143242008 is 8002423412.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143242007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133952618 + ... + 133952633.

Almost surely, 2^2143242008 is an apocalyptic number.

It is an amenable number.

2143242008 is a deficient number, since it is larger than the sum of its proper divisors (1875336772).

2143242008 is a wasteful number, since it uses less digits than its factorization.

2143242008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267905257 (or 267905253 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 2143242008 is about 46295.1618206482. The cubic root of 2143242008 is about 1289.3091683951.

The spelling of 2143242008 in words is "two billion, one hundred forty-three million, two hundred forty-two thousand, eight".