386328720 has 160 divisors (see below), whose sum is σ = 1266347520. Its totient is φ = 97269760.

The previous prime is 386328703. The next prime is 386328731. The reversal of 386328720 is 27823683.

It is a happy number.

It is a super-3 number, since 3×386328720³ (a number of 27 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 326530 + ... + 327710.

It is an arithmetic number, because the mean of its divisors is an integer number (7914672).

Almost surely, 2^386328720 is an apocalyptic number.

386328720 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 386328720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (633173760).

386328720 is an abundant number, since it is smaller than the sum of its proper divisors (880018800).

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

386328720 is a wasteful number, since it uses less digits than its factorization.

386328720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1273 (or 1267 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 386328720 is about 19655.2466278091. The cubic root of 386328720 is about 728.3145704098.

The spelling of 386328720 in words is "three hundred eighty-six million, three hundred twenty-eight thousand, seven hundred twenty".