388841445 has 32 divisors (see below), whose sum is σ = 699062400. Its totient is φ = 205045632.

The previous prime is 388841413. The next prime is 388841461. The reversal of 388841445 is 544148883.

It is not a de Polignac number, because 388841445 - 2⁵ = 388841413 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 388841445.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4167 + ... + 28196.

It is an arithmetic number, because the mean of its divisors is an integer number (21845700).

Almost surely, 2^388841445 is an apocalyptic number.

It is an amenable number.

388841445 is a deficient number, since it is larger than the sum of its proper divisors (310220955).

388841445 is a wasteful number, since it uses less digits than its factorization.

388841445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32466 (or 32460 counting only the distinct ones).

The product of its digits is 491520, while the sum is 45.

The square root of 388841445 is about 19719.0629848378. The cubic root of 388841445 is about 729.8901723809.

The spelling of 388841445 in words is "three hundred eighty-eight million, eight hundred forty-one thousand, four hundred forty-five".