388425211 has 4 divisors (see below), whose sum is σ = 388488672. Its totient is φ = 388361752.

The previous prime is 388425203. The next prime is 388425221. The reversal of 388425211 is 112524883.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 388425211 - 2³ = 388425203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (388425221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21436 + ... + 35161.

It is an arithmetic number, because the mean of its divisors is an integer number (97122168).

Almost surely, 2^388425211 is an apocalyptic number.

388425211 is a deficient number, since it is larger than the sum of its proper divisors (63461).

388425211 is an equidigital number, since it uses as much as digits as its factorization.

388425211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63460.

The product of its digits is 15360, while the sum is 34.

The square root of 388425211 is about 19708.5060570303. The cubic root of 388425211 is about 729.6296432485.

The spelling of 388425211 in words is "three hundred eighty-eight million, four hundred twenty-five thousand, two hundred eleven".