388562944 has 153 divisors (see below), whose sum is σ = 993649251. Its totient is φ = 151388160.

The previous prime is 388562929. The next prime is 388562983. The reversal of 388562944 is 449265883.

The square root of 388562944 is 19712.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×388562944² = 301962322899894272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49).

Its product of digits (1658880) is a multiple of the sum of its prime divisors (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 35323899 + ... + 35323909.

Almost surely, 2^388562944 is an apocalyptic number.

388562944 is the 19712-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 388562944

388562944 is an abundant number, since it is smaller than the sum of its proper divisors (605086307).

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

388562944 is an frugal number, since it uses more digits than its factorization.

388562944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68 (or 20 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 49.

The cubic root of 388562944 is about 729.7158736655.

Multiplying 388562944 by its sum of digits (49), we get a square (19039584256 = 137984²).

388562944 divided by its sum of digits (49) gives a square (7929856 = 2816²).

The spelling of 388562944 in words is "three hundred eighty-eight million, five hundred sixty-two thousand, nine hundred forty-four".