1002009202 has 8 divisors (see below), whose sum is σ = 1531372716. Its totient is φ = 491551632.

The previous prime is 1002009199. The next prime is 1002009233. The reversal of 1002009202 is 2029002001.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 961062001 + 40947201 = 31001^2 + 6399^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4726353 + ... + 4726564.

Almost surely, 2^1002009202 is an apocalyptic number.

1002009202 is a deficient number, since it is larger than the sum of its proper divisors (529363514).

1002009202 is an equidigital number, since it uses as much as digits as its factorization.

1002009202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9452972.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1002009202 is about 31654.5289334717. The cubic root of 1002009202 is about 1000.6692859564.

The spelling of 1002009202 in words is "one billion, two million, nine thousand, two hundred two".