1002031409 has 8 divisors (see below), whose sum is σ = 1065327552. Its totient is φ = 940379440.

The previous prime is 1002031379. The next prime is 1002031411. The reversal of 1002031409 is 9041302001.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1002031409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1002031309) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 409787 + ... + 412224.

It is an arithmetic number, because the mean of its divisors is an integer number (133165944).

Almost surely, 2^1002031409 is an apocalyptic number.

It is an amenable number.

1002031409 is a deficient number, since it is larger than the sum of its proper divisors (63296143).

1002031409 is an equidigital number, since it uses as much as digits as its factorization.

1002031409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822087.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 1002031409 is about 31654.8797028199. The cubic root of 1002031409 is about 1000.6766783365.

The spelling of 1002031409 in words is "one billion, two million, thirty-one thousand, four hundred nine".