386531080 has 64 divisors (see below), whose sum is σ = 945483840. Its totient is φ = 141364992.

The previous prime is 386531071. The next prime is 386531081. The reversal of 386531080 is 80135683.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (386531081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52167 + ... + 59113.

It is an arithmetic number, because the mean of its divisors is an integer number (14773185).

Almost surely, 2^386531080 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 386531080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (472741920).

386531080 is an abundant number, since it is smaller than the sum of its proper divisors (558952760).

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

386531080 is a wasteful number, since it uses less digits than its factorization.

386531080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7078 (or 7074 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 386531080 is about 19660.3936888354. The cubic root of 386531080 is about 728.4417125760.

The spelling of 386531080 in words is "three hundred eighty-six million, five hundred thirty-one thousand, eighty".