2840890001 has 4 divisors (see below), whose sum is σ = 2841124404. Its totient is φ = 2840655600.

The previous prime is 2840889913. The next prime is 2840890021. The reversal of 2840890001 is 1000980482.

It is a happy number.

It is a Cunningham number, because it is equal to 53300²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 157753600 + 2683136401 = 12560^2 + 51799^2 .

It is a cyclic number.

It is not a de Polignac number, because 2840890001 - 2¹⁰ = 2840888977 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2840890001.

It is not an unprimeable number, because it can be changed into a prime (2840890021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97970 + ... + 123611.

It is an arithmetic number, because the mean of its divisors is an integer number (710281101).

Almost surely, 2^2840890001 is an apocalyptic number.

It is an amenable number.

2840890001 is a deficient number, since it is larger than the sum of its proper divisors (234403).

2840890001 is a wasteful number, since it uses less digits than its factorization.

2840890001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234402.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 2840890001 is about 53300.0000093809. Note that the first 5 decimals coincide. The cubic root of 2840890001 is about 1416.2876650244.

The spelling of 2840890001 in words is "two billion, eight hundred forty million, eight hundred ninety thousand, one".