320070009 has 24 divisors (see below), whose sum is σ = 512456448. Its totient is φ = 176994720.

The previous prime is 320070007. The next prime is 320070011. The reversal of 320070009 is 900070023.

It is an interprime number because it is at equal distance from previous prime (320070007) and next prime (320070011).

It is not a de Polignac number, because 320070009 - 2¹ = 320070007 is a prime.

It is a super-2 number, since 2×320070009² = 204889621322520162, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (320070007) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30562 + ... + 39675.

It is an arithmetic number, because the mean of its divisors is an integer number (21352352).

Almost surely, 2^320070009 is an apocalyptic number.

It is an amenable number.

320070009 is a deficient number, since it is larger than the sum of its proper divisors (192386439).

320070009 is a wasteful number, since it uses less digits than its factorization.

320070009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70285 (or 70278 counting only the distinct ones).

The product of its (nonzero) digits is 378, while the sum is 21.

The square root of 320070009 is about 17890.5005240211. The cubic root of 320070009 is about 684.0402557444.

The spelling of 320070009 in words is "three hundred twenty million, seventy thousand, nine".