388838769 has 8 divisors (see below), whose sum is σ = 565583712. Its totient is φ = 235659840.

The previous prime is 388838767. The next prime is 388838771. The reversal of 388838769 is 967838883.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (388838767) and next prime (388838771).

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

It is not a de Polignac number, because 388838769 - 2¹ = 388838767 is a prime.

It is a super-2 number, since 2×388838769² = 302391176554870722, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (388838767) 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, 5891464 + ... + 5891529.

It is an arithmetic number, because the mean of its divisors is an integer number (70697964).

Almost surely, 2^388838769 is an apocalyptic number.

It is an amenable number.

388838769 is a deficient number, since it is larger than the sum of its proper divisors (176744943).

388838769 is a wasteful number, since it uses less digits than its factorization.

388838769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11783007.

The product of its digits is 13934592, while the sum is 60.

The square root of 388838769 is about 19718.9951315984. The cubic root of 388838769 is about 729.8884980133. Note that the first 3 decimals are identical.

The spelling of 388838769 in words is "three hundred eighty-eight million, eight hundred thirty-eight thousand, seven hundred sixty-nine".