388424448 has 162 divisors, whose sum is σ = 1184500044. Its totient is φ = 122397696.

The previous prime is 388424419. The next prime is 388424471. The reversal of 388424448 is 844424883.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 831511 + ... + 831977.

Almost surely, 2^388424448 is an apocalyptic number.

388424448 is a gapful number since it is divisible by the number (38) 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 388424448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (592250022).

388424448 is an abundant number, since it is smaller than the sum of its proper divisors (796075596).

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

388424448 is a wasteful number, since it uses less digits than its factorization.

388424448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527 (or 491 counting only the distinct ones).

The product of its digits is 786432, while the sum is 45.

The square root of 388424448 is about 19708.4866998966. The cubic root of 388424448 is about 729.6291655008.

The spelling of 388424448 in words is "three hundred eighty-eight million, four hundred twenty-four thousand, four hundred forty-eight".