388822161 has 16 divisors (see below), whose sum is σ = 638067584. Its totient is φ = 205092864.

The previous prime is 388822139. The next prime is 388822183. The reversal of 388822161 is 161228883.

It is an interprime number because it is at equal distance from previous prime (388822139) and next prime (388822183).

It is not a de Polignac number, because 388822161 - 2⁶ = 388822097 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (388826161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 711856 + ... + 712401.

It is an arithmetic number, because the mean of its divisors is an integer number (39879224).

Almost surely, 2^388822161 is an apocalyptic number.

It is an amenable number.

388822161 is a deficient number, since it is larger than the sum of its proper divisors (249245423).

388822161 is a wasteful number, since it uses less digits than its factorization.

388822161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1424280.

The product of its digits is 36864, while the sum is 39.

The square root of 388822161 is about 19718.5740103081. The cubic root of 388822161 is about 729.8781062505.

The spelling of 388822161 in words is "three hundred eighty-eight million, eight hundred twenty-two thousand, one hundred sixty-one".