388449516 has 48 divisors (see below), whose sum is σ = 1115550464. Its totient is φ = 102447936.

The previous prime is 388449491. The next prime is 388449517. The reversal of 388449516 is 615944883.

It is not an unprimeable number, because it can be changed into a prime (388449517) 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, 176770 + ... + 178953.

Almost surely, 2^388449516 is an apocalyptic number.

It is an amenable number.

388449516 is an abundant number, since it is smaller than the sum of its proper divisors (727100948).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

388449516 is a wasteful number, since it uses less digits than its factorization.

388449516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355750 (or 355748 counting only the distinct ones).

The product of its digits is 829440, while the sum is 48.

The square root of 388449516 is about 19709.1226593169. The cubic root of 388449516 is about 729.6448613463.

The spelling of 388449516 in words is "three hundred eighty-eight million, four hundred forty-nine thousand, five hundred sixteen".