388765382 has 4 divisors (see below), whose sum is σ = 583148076. Its totient is φ = 194382690.

The previous prime is 388765381. The next prime is 388765397. The reversal of 388765382 is 283567883.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 283567883 = 151 ⋅1877933.

It is a super-2 number, since 2×388765382² = 302277044483211848, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 388765382.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388765381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97191344 + ... + 97191347.

It is an arithmetic number, because the mean of its divisors is an integer number (145787019).

Almost surely, 2^388765382 is an apocalyptic number.

388765382 is a deficient number, since it is larger than the sum of its proper divisors (194382694).

388765382 is a wasteful number, since it uses less digits than its factorization.

388765382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194382693.

The product of its digits is 1935360, while the sum is 50.

The square root of 388765382 is about 19717.1342238166. The cubic root of 388765382 is about 729.8425769258.

The spelling of 388765382 in words is "three hundred eighty-eight million, seven hundred sixty-five thousand, three hundred eighty-two".