388212672 has 56 divisors (see below), whose sum is σ = 1031865856. Its totient is φ = 128809728.

The previous prime is 388212667. The next prime is 388212679. The reversal of 388212672 is 276212883.

It is a self number, because there is not a number n which added to its sum of digits gives 388212672.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388212679) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38283 + ... + 47349.

It is an arithmetic number, because the mean of its divisors is an integer number (18426176).

Almost surely, 2^388212672 is an apocalyptic number.

388212672 is a gapful number since it is divisible by the number (32) 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 388212672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (515932928).

388212672 is an abundant number, since it is smaller than the sum of its proper divisors (643653184).

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

388212672 is a wasteful number, since it uses less digits than its factorization.

388212672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9305 (or 9295 counting only the distinct ones).

The product of its digits is 64512, while the sum is 39.

The square root of 388212672 is about 19703.1132565389. The cubic root of 388212672 is about 729.4965390767.

The spelling of 388212672 in words is "three hundred eighty-eight million, two hundred twelve thousand, six hundred seventy-two".