2143049990 has 16 divisors (see below), whose sum is σ = 3961747152. Its totient is φ = 834051744.

The previous prime is 2143049989. The next prime is 2143049999. The reversal of 2143049990 is 999403412.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143049999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2895644 + ... + 2896383.

It is an arithmetic number, because the mean of its divisors is an integer number (247609197).

Almost surely, 2^2143049990 is an apocalyptic number.

2143049990 is a deficient number, since it is larger than the sum of its proper divisors (1818697162).

2143049990 is a wasteful number, since it uses less digits than its factorization.

2143049990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5792071.

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 2143049990 is about 46293.0879289770. The cubic root of 2143049990 is about 1289.2706631834.

The spelling of 2143049990 in words is "two billion, one hundred forty-three million, forty-nine thousand, nine hundred ninety".