388069416 has 144 divisors (see below), whose sum is σ = 1265109300. Its totient is φ = 107025408.

The previous prime is 388069397. The next prime is 388069447. The reversal of 388069416 is 614960883.

It can be written as a sum of positive squares in 2 ways, for example, as 378146916 + 9922500 = 19446^2 + 3150^2 .

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 100416 + ... + 104208.

Almost surely, 2^388069416 is an apocalyptic number.

388069416 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 388069416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (632554650).

388069416 is an abundant number, since it is smaller than the sum of its proper divisors (877039884).

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

388069416 is a wasteful number, since it uses less digits than its factorization.

388069416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3848 (or 3834 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 388069416 is about 19699.4775565242. The cubic root of 388069416 is about 729.4067965027.

The spelling of 388069416 in words is "three hundred eighty-eight million, sixty-nine thousand, four hundred sixteen".