383457680 has 20 divisors (see below), whose sum is σ = 891539292. Its totient is φ = 153383040.

The previous prime is 383457673. The next prime is 383457689. The reversal of 383457680 is 86754383.

It can be written as a sum of positive squares in 2 ways, for example, as 55413136 + 328044544 = 7444^2 + 18112^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (383457689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2396531 + ... + 2396690.

Almost surely, 2^383457680 is an apocalyptic number.

It is an amenable number.

383457680 is an abundant number, since it is smaller than the sum of its proper divisors (508081612).

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

383457680 is a wasteful number, since it uses less digits than its factorization.

383457680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4793234 (or 4793228 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 44.

The square root of 383457680 is about 19582.0754773339. The cubic root of 383457680 is about 726.5059020205.

The spelling of 383457680 in words is "three hundred eighty-three million, four hundred fifty-seven thousand, six hundred eighty".