386081388 has 216 divisors, whose sum is σ = 1257079824. Its totient is φ = 98784000.

The previous prime is 386081363. The next prime is 386081393. The reversal of 386081388 is 883180683.

386081388 is a `hidden beast` number, since 3 + 8 + 608 + 1 + 38 + 8 = 666.

It is a super-4 number, since 4×386081388⁴ (a number of 35 digits) contains 4444 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1959706 + ... + 1959902.

It is an arithmetic number, because the mean of its divisors is an integer number (5819814).

Almost surely, 2^386081388 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 386081388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (628539912).

386081388 is an abundant number, since it is smaller than the sum of its proper divisors (870998436).

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

386081388 is a wasteful number, since it uses less digits than its factorization.

386081388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333 (or 321 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The square root of 386081388 is about 19648.9538652825. The cubic root of 386081388 is about 728.1591121646.

The spelling of 386081388 in words is "three hundred eighty-six million, eighty-one thousand, three hundred eighty-eight".