388541801 has 2 divisors, whose sum is σ = 388541802. Its totient is φ = 388541800.

The previous prime is 388541771. The next prime is 388541821. The reversal of 388541801 is 108145883.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 362521600 + 26020201 = 19040^2 + 5101^2 .

It is a cyclic number.

It is not a de Polignac number, because 388541801 - 2¹⁰ = 388540777 is a prime.

It is a super-2 number, since 2×388541801² = 301929462248647202, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (388541821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194270900 + 194270901.

It is an arithmetic number, because the mean of its divisors is an integer number (194270901).

Almost surely, 2^388541801 is an apocalyptic number.

It is an amenable number.

388541801 is a deficient number, since it is larger than the sum of its proper divisors (1).

388541801 is an equidigital number, since it uses as much as digits as its factorization.

388541801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30720, while the sum is 38.

The square root of 388541801 is about 19711.4636950177. The cubic root of 388541801 is about 729.7026380042.

The spelling of 388541801 in words is "three hundred eighty-eight million, five hundred forty-one thousand, eight hundred one".