320769148 has 12 divisors (see below), whose sum is σ = 641538352. Its totient is φ = 137472480.

The previous prime is 320769139. The next prime is 320769157. The reversal of 320769148 is 841967023.

It is an interprime number because it is at equal distance from previous prime (320769139) and next prime (320769157).

320769148 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 320769148.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5727993 + ... + 5728048.

Almost surely, 2^320769148 is an apocalyptic number.

It is an amenable number.

320769148 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320769148 is a wasteful number, since it uses less digits than its factorization.

320769148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11456052 (or 11456050 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 320769148 is about 17910.0292573742. The cubic root of 320769148 is about 684.5379504339.

The spelling of 320769148 in words is "three hundred twenty million, seven hundred sixty-nine thousand, one hundred forty-eight".