1030396809 has 64 divisors (see below), whose sum is σ = 1662716160. Its totient is φ = 560701440.

The previous prime is 1030396799. The next prime is 1030396813. The reversal of 1030396809 is 9086930301.

It is not a de Polignac number, because 1030396809 - 2⁴ = 1030396793 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (1030396109) 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 63 ways as a sum of consecutive naturals, for example, 1977469 + ... + 1977989.

It is an arithmetic number, because the mean of its divisors is an integer number (25979940).

Almost surely, 2^1030396809 is an apocalyptic number.

1030396809 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1030396809 is a deficient number, since it is larger than the sum of its proper divisors (632319351).

1030396809 is a wasteful number, since it uses less digits than its factorization.

1030396809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730.

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 1030396809 is about 32099.7945320527. The cubic root of 1030396809 is about 1010.0313060910.

The spelling of 1030396809 in words is "one billion, thirty million, three hundred ninety-six thousand, eight hundred nine".