320870030 has 32 divisors (see below), whose sum is σ = 625514400. Its totient is φ = 117804672.

The previous prime is 320870023. The next prime is 320870041. The reversal of 320870030 is 30078023.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 320869978 and 320870005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16376 + ... + 30164.

It is an arithmetic number, because the mean of its divisors is an integer number (19547325).

Almost surely, 2^320870030 is an apocalyptic number.

320870030 is a deficient number, since it is larger than the sum of its proper divisors (304644370).

320870030 is a wasteful number, since it uses less digits than its factorization.

320870030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13988.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 320870030 is about 17912.8453909478. The cubic root of 320870030 is about 684.6097053805.

The spelling of 320870030 in words is "three hundred twenty million, eight hundred seventy thousand, thirty".