388466845 has 8 divisors (see below), whose sum is σ = 502018776. Its totient is φ = 286867776.

The previous prime is 388466843. The next prime is 388466851. The reversal of 388466845 is 548664883.

It can be written as a sum of positive squares in 4 ways, for example, as 3286969 + 385179876 = 1813^2 + 19626^2 .

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

It is not a de Polignac number, because 388466845 - 2¹ = 388466843 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 388466792 and 388466801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388466843) 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, 2988142 + ... + 2988271.

It is an arithmetic number, because the mean of its divisors is an integer number (62752347).

Almost surely, 2^388466845 is an apocalyptic number.

It is an amenable number.

388466845 is a deficient number, since it is larger than the sum of its proper divisors (113551931).

388466845 is a wasteful number, since it uses less digits than its factorization.

388466845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5976431.

The product of its digits is 4423680, while the sum is 52.

The square root of 388466845 is about 19709.5622731709. The cubic root of 388466845 is about 729.6557111713.

The spelling of 388466845 in words is "three hundred eighty-eight million, four hundred sixty-six thousand, eight hundred forty-five".