388995145 has 32 divisors (see below), whose sum is σ = 584672256. Its totient is φ = 241368000.

The previous prime is 388995133. The next prime is 388995149. The reversal of 388995145 is 541599883.

It is not a de Polignac number, because 388995145 - 2⁹ = 388994633 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 388995092 and 388995101.

It is not an unprimeable number, because it can be changed into a prime (388995149) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 85170 + ... + 89620.

It is an arithmetic number, because the mean of its divisors is an integer number (18271008).

Almost surely, 2^388995145 is an apocalyptic number.

388995145 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

388995145 is a deficient number, since it is larger than the sum of its proper divisors (195677111).

388995145 is a wasteful number, since it uses less digits than its factorization.

388995145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4701.

The product of its digits is 1555200, while the sum is 52.

The square root of 388995145 is about 19722.9598437963. The cubic root of 388995145 is about 729.9863292617.

It can be divided in two parts, 38899 and 5145, that added together give a palindrome (44044).

The spelling of 388995145 in words is "three hundred eighty-eight million, nine hundred ninety-five thousand, one hundred forty-five".