388082899369 has 9 divisors (see below), whose sum is σ = 426577991959. Its totient is φ = 352796406160.

The previous prime is 388082899301. The next prime is 388082899387. The reversal of 388082899369 is 963998280883.

The square root of 388082899369 is 622963.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 314906157225 + 73176742144 = 561165^2 + 270512^2 .

It is a de Polignac number, because none of the positive numbers 2^k-388082899369 is a prime.

It is a super-2 number, since 2×388082899369² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (388082899769) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 6824277 + ... + 6880909.

Almost surely, 2^388082899369 is an apocalyptic number.

388082899369 is the 622963-rd square number.

388082899369 is the 311482-nd centered octagonal number.

It is an amenable number.

388082899369 is a deficient number, since it is larger than the sum of its proper divisors (38495092590).

388082899369 is an frugal number, since it uses more digits than its factorization.

388082899369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113288 (or 56644 counting only the distinct ones).

The product of its (nonzero) digits is 322486272, while the sum is 73.

The spelling of 388082899369 in words is "three hundred eighty-eight billion, eighty-two million, eight hundred ninety-nine thousand, three hundred sixty-nine".