388145032 has 64 divisors (see below), whose sum is σ = 819201600. Its totient is φ = 170880000.

The previous prime is 388145029. The next prime is 388145041. The reversal of 388145032 is 230541883.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 645532 + ... + 646132.

It is an arithmetic number, because the mean of its divisors is an integer number (12800025).

Almost surely, 2^388145032 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 388145032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (409600800).

388145032 is an abundant number, since it is smaller than the sum of its proper divisors (431056568).

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

388145032 is a wasteful number, since it uses less digits than its factorization.

388145032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838 (or 834 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 388145032 is about 19701.3967017570. The cubic root of 388145032 is about 729.4541688198.

The spelling of 388145032 in words is "three hundred eighty-eight million, one hundred forty-five thousand, thirty-two".