1820027274 has 32 divisors (see below), whose sum is σ = 3921751680. Its totient is φ = 559766592.

The previous prime is 1820027263. The next prime is 1820027281. The reversal of 1820027274 is 4727200281.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 278112 + ... + 284580.

It is an arithmetic number, because the mean of its divisors is an integer number (122554740).

Almost surely, 2^1820027274 is an apocalyptic number.

1820027274 is an abundant number, since it is smaller than the sum of its proper divisors (2101724406).

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

1820027274 is a wasteful number, since it uses less digits than its factorization.

1820027274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10094.

The product of its (nonzero) digits is 12544, while the sum is 33.

The square root of 1820027274 is about 42661.7776704159. Note that the first 3 decimals coincide. The cubic root of 1820027274 is about 1220.9352485481.

The spelling of 1820027274 in words is "one billion, eight hundred twenty million, twenty-seven thousand, two hundred seventy-four".