388994049 has 16 divisors (see below), whose sum is σ = 606619200. Its totient is φ = 245680128.

The previous prime is 388994041. The next prime is 388994057. The reversal of 388994049 is 940499883.

It is an interprime number because it is at equal distance from previous prime (388994041) and next prime (388994057).

It is not a de Polignac number, because 388994049 - 2³ = 388994041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 388993986 and 388994004.

It is not an unprimeable number, because it can be changed into a prime (388994041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 378624 + ... + 379649.

It is an arithmetic number, because the mean of its divisors is an integer number (37913700).

Almost surely, 2^388994049 is an apocalyptic number.

It is an amenable number.

388994049 is a deficient number, since it is larger than the sum of its proper divisors (217625151).

388994049 is a wasteful number, since it uses less digits than its factorization.

388994049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 758301 (or 758295 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The square root of 388994049 is about 19722.9320589004. The cubic root of 388994049 is about 729.9856436784.

The spelling of 388994049 in words is "three hundred eighty-eight million, nine hundred ninety-four thousand, forty-nine".