388249005 has 16 divisors (see below), whose sum is σ = 622246464. Its totient is φ = 206716800.

The previous prime is 388249003. The next prime is 388249063. The reversal of 388249005 is 500942883.

It is a happy number.

It is not a de Polignac number, because 388249005 - 2¹ = 388249003 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388249003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12519 + ... + 30548.

It is an arithmetic number, because the mean of its divisors is an integer number (38890404).

Almost surely, 2^388249005 is an apocalyptic number.

It is an amenable number.

388249005 is a deficient number, since it is larger than the sum of its proper divisors (233997459).

388249005 is a wasteful number, since it uses less digits than its factorization.

388249005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43676.

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 388249005 is about 19704.0352466189. The cubic root of 388249005 is about 729.5192963374.

The spelling of 388249005 in words is "three hundred eighty-eight million, two hundred forty-nine thousand, five".