388686265 has 16 divisors (see below), whose sum is σ = 511252416. Its totient is φ = 281332800.

The previous prime is 388686251. The next prime is 388686271. The reversal of 388686265 is 562686883.

It is a happy number.

It is not a de Polignac number, because 388686265 - 2²¹ = 386589113 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5142 + ... + 28351.

It is an arithmetic number, because the mean of its divisors is an integer number (31953276).

Almost surely, 2^388686265 is an apocalyptic number.

It is an amenable number.

388686265 is a deficient number, since it is larger than the sum of its proper divisors (122566151).

388686265 is a wasteful number, since it uses less digits than its factorization.

388686265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33720.

The product of its digits is 3317760, while the sum is 52.

The square root of 388686265 is about 19715.1278210414. The cubic root of 388686265 is about 729.7930638816.

The spelling of 388686265 in words is "three hundred eighty-eight million, six hundred eighty-six thousand, two hundred sixty-five".