388324930469 has 12 divisors (see below), whose sum is σ = 455869190700. Its totient is φ = 329796266688.

The previous prime is 388324930457. The next prime is 388324930517. The reversal of 388324930469 is 964039423883.

It can be written as a sum of positive squares in 2 ways, for example, as 132541867969 + 255783062500 = 364063^2 + 505750^2 .

It is not a de Polignac number, because 388324930469 - 2³² = 384029963173 is a prime.

It is a super-2 number, since 2×388324930469² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388324939469) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36347864 + ... + 36358545.

It is an arithmetic number, because the mean of its divisors is an integer number (37989099225).

Almost surely, 2^388324930469 is an apocalyptic number.

It is an amenable number.

388324930469 is a deficient number, since it is larger than the sum of its proper divisors (67544260231).

388324930469 is a wasteful number, since it uses less digits than its factorization.

388324930469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72706532 (or 72706525 counting only the distinct ones).

The product of its (nonzero) digits is 26873856, while the sum is 59.

The spelling of 388324930469 in words is "three hundred eighty-eight billion, three hundred twenty-four million, nine hundred thirty thousand, four hundred sixty-nine".