388431416 has 16 divisors (see below), whose sum is σ = 730401000. Its totient is φ = 193657824.

The previous prime is 388431413. The next prime is 388431431. The reversal of 388431416 is 614134883.

It is a self number, because there is not a number n which added to its sum of digits gives 388431416.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388431413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66770 + ... + 72353.

Almost surely, 2^388431416 is an apocalyptic number.

It is an amenable number.

388431416 is a deficient number, since it is larger than the sum of its proper divisors (341969584).

388431416 is a wasteful number, since it uses less digits than its factorization.

388431416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139478 (or 139474 counting only the distinct ones).

The product of its digits is 55296, while the sum is 38.

The square root of 388431416 is about 19708.6634757408. The cubic root of 388431416 is about 729.6335284476.

The spelling of 388431416 in words is "three hundred eighty-eight million, four hundred thirty-one thousand, four hundred sixteen".