320450648 has 16 divisors (see below), whose sum is σ = 686680080. Its totient is φ = 137335968.

The previous prime is 320450639. The next prime is 320450657. The reversal of 320450648 is 846054023.

It is an interprime number because it is at equal distance from previous prime (320450639) and next prime (320450657).

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, 2861111 + ... + 2861222.

It is an arithmetic number, because the mean of its divisors is an integer number (42917505).

Almost surely, 2^320450648 is an apocalyptic number.

It is an amenable number.

320450648 is an abundant number, since it is smaller than the sum of its proper divisors (366229432).

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

320450648 is a wasteful number, since it uses less digits than its factorization.

320450648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5722346 (or 5722342 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 320450648 is about 17901.1353829862. The cubic root of 320450648 is about 684.3113102480.

The spelling of 320450648 in words is "three hundred twenty million, four hundred fifty thousand, six hundred forty-eight".