320283949 has 2 divisors, whose sum is σ = 320283950. Its totient is φ = 320283948.

The previous prime is 320283941. The next prime is 320284001. The reversal of 320283949 is 949382023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 315311049 + 4972900 = 17757^2 + 2230^2 .

It is a cyclic number.

It is not a de Polignac number, because 320283949 - 2³ = 320283941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320283941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160141974 + 160141975.

It is an arithmetic number, because the mean of its divisors is an integer number (160141975).

Almost surely, 2^320283949 is an apocalyptic number.

It is an amenable number.

320283949 is a deficient number, since it is larger than the sum of its proper divisors (1).

320283949 is an equidigital number, since it uses as much as digits as its factorization.

320283949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 320283949 is about 17896.4786759854. The cubic root of 320283949 is about 684.1926296773.

The spelling of 320283949 in words is "three hundred twenty million, two hundred eighty-three thousand, nine hundred forty-nine".