2086840428 has 24 divisors (see below), whose sum is σ = 4873073520. Its totient is φ = 695073600.

The previous prime is 2086840417. The next prime is 2086840453. The reversal of 2086840428 is 8240486802.

It is a self number, because there is not a number n which added to its sum of digits gives 2086840428.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51223 + ... + 82446.

It is an arithmetic number, because the mean of its divisors is an integer number (203044730).

Almost surely, 2^2086840428 is an apocalyptic number.

It is an amenable number.

2086840428 is an abundant number, since it is smaller than the sum of its proper divisors (2786233092).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2086840428 is a wasteful number, since it uses less digits than its factorization.

2086840428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134977 (or 134975 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 42.

The square root of 2086840428 is about 45681.9486011707. The cubic root of 2086840428 is about 1277.8986574747.

The spelling of 2086840428 in words is "two billion, eighty-six million, eight hundred forty thousand, four hundred twenty-eight".