386656424 has 64 divisors (see below), whose sum is σ = 908150400. Its totient is φ = 149932800.

The previous prime is 386656421. The next prime is 386656429. The reversal of 386656424 is 424656683.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (386656421) 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, 139694 + ... + 142434.

It is an arithmetic number, because the mean of its divisors is an integer number (14189850).

Almost surely, 2^386656424 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 386656424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (454075200).

386656424 is an abundant number, since it is smaller than the sum of its proper divisors (521493976).

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

386656424 is a wasteful number, since it uses less digits than its factorization.

386656424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2994 (or 2990 counting only the distinct ones).

The product of its digits is 829440, while the sum is 44.

The square root of 386656424 is about 19663.5811590870. The cubic root of 386656424 is about 728.5204435716.

The spelling of 386656424 in words is "three hundred eighty-six million, six hundred fifty-six thousand, four hundred twenty-four".