320954885 has 8 divisors (see below), whose sum is σ = 385318296. Its totient is φ = 256648960.

The previous prime is 320954863. The next prime is 320954891. The reversal of 320954885 is 588459023.

It can be written as a sum of positive squares in 4 ways, for example, as 1760929 + 319193956 = 1327^2 + 17866^2 .

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

It is not a de Polignac number, because 320954885 - 2¹⁸ = 320692741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 944 + ... + 25353.

It is an arithmetic number, because the mean of its divisors is an integer number (48164787).

Almost surely, 2^320954885 is an apocalyptic number.

It is an amenable number.

320954885 is a deficient number, since it is larger than the sum of its proper divisors (64363411).

320954885 is a wasteful number, since it uses less digits than its factorization.

320954885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28743.

The product of its (nonzero) digits is 345600, while the sum is 44.

The square root of 320954885 is about 17915.2137860535. The cubic root of 320954885 is about 684.6700490617.

The spelling of 320954885 in words is "three hundred twenty million, nine hundred fifty-four thousand, eight hundred eighty-five".