1819201002 has 16 divisors (see below), whose sum is σ = 3638867232. Its totient is φ = 606322800.

The previous prime is 1819200997. The next prime is 1819201009. The reversal of 1819201002 is 2001029181.

It is not an unprimeable number, because it can be changed into a prime (1819201009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51252 + ... + 79152.

It is an arithmetic number, because the mean of its divisors is an integer number (227429202).

Almost surely, 2^1819201002 is an apocalyptic number.

1819201002 is an abundant number, since it is smaller than the sum of its proper divisors (1819666230).

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

1819201002 is a wasteful number, since it uses less digits than its factorization.

1819201002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38773.

The product of its (nonzero) digits is 288, while the sum is 24.

The square root of 1819201002 is about 42652.0925864136. The cubic root of 1819201002 is about 1220.7504569377.

The spelling of 1819201002 in words is "one billion, eight hundred nineteen million, two hundred one thousand, two".