388190852 has 24 divisors (see below), whose sum is σ = 822052224. Its totient is φ = 156580992.

The previous prime is 388190851. The next prime is 388190863. The reversal of 388190852 is 258091883.

It is not an unprimeable number, because it can be changed into a prime (388190851) 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, 407288 + ... + 408239.

It is an arithmetic number, because the mean of its divisors is an integer number (34252176).

Almost surely, 2^388190852 is an apocalyptic number.

It is an amenable number.

388190852 is an abundant number, since it is smaller than the sum of its proper divisors (433861372).

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

388190852 is a wasteful number, since it uses less digits than its factorization.

388190852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815555 (or 815553 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 44.

The square root of 388190852 is about 19702.5595291576. The cubic root of 388190852 is about 729.4828713856.

The spelling of 388190852 in words is "three hundred eighty-eight million, one hundred ninety thousand, eight hundred fifty-two".