388031472 has 100 divisors (see below), whose sum is σ = 1139163696. Its totient is φ = 127491840.

The previous prime is 388031467. The next prime is 388031473. The reversal of 388031472 is 274130883.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388031473) 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, 89908 + ... + 94124.

Almost surely, 2^388031472 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 388031472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (569581848).

388031472 is an abundant number, since it is smaller than the sum of its proper divisors (751132224).

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

388031472 is a wasteful number, since it uses less digits than its factorization.

388031472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4308 (or 4293 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 388031472 is about 19698.5144617557. The cubic root of 388031472 is about 729.3830228233.

The spelling of 388031472 in words is "three hundred eighty-eight million, thirty-one thousand, four hundred seventy-two".