386748918 has 40 divisors (see below), whose sum is σ = 869187528. Its totient is φ = 128532096.

The previous prime is 386748917. The next prime is 386748919. The reversal of 386748918 is 819847683.

It is an interprime number because it is at equal distance from previous prime (386748917) and next prime (386748919).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (386748913) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 53805 + ... + 60567.

Almost surely, 2^386748918 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 386748918, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (434593764).

386748918 is an abundant number, since it is smaller than the sum of its proper divisors (482438610).

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

386748918 is a wasteful number, since it uses less digits than its factorization.

386748918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7130 (or 7121 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 54.

The square root of 386748918 is about 19665.9329298155. The cubic root of 386748918 is about 728.5785299357.

The spelling of 386748918 in words is "three hundred eighty-six million, seven hundred forty-eight thousand, nine hundred eighteen".