388812129 has 8 divisors (see below), whose sum is σ = 519983712. Its totient is φ = 258424320.

The previous prime is 388812107. The next prime is 388812133. The reversal of 388812129 is 921218883.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 388812129 - 2¹² = 388808033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (388882129) 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, 194784 + ... + 196769.

It is an arithmetic number, because the mean of its divisors is an integer number (64997964).

Almost surely, 2^388812129 is an apocalyptic number.

It is an amenable number.

388812129 is a deficient number, since it is larger than the sum of its proper divisors (131171583).

388812129 is a wasteful number, since it uses less digits than its factorization.

388812129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391887.

The product of its digits is 55296, while the sum is 42.

The square root of 388812129 is about 19718.3196292179. The cubic root of 388812129 is about 729.8718290018.

The spelling of 388812129 in words is "three hundred eighty-eight million, eight hundred twelve thousand, one hundred twenty-nine".