388727672 has 8 divisors (see below), whose sum is σ = 728864400. Its totient is φ = 194363832.

The previous prime is 388727671. The next prime is 388727699. The reversal of 388727672 is 276727883.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×388727672² = 302218405957079168, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 388727672.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388727671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24295472 + ... + 24295487.

It is an arithmetic number, because the mean of its divisors is an integer number (91108050).

Almost surely, 2^388727672 is an apocalyptic number.

It is an amenable number.

388727672 is a deficient number, since it is larger than the sum of its proper divisors (340136728).

388727672 is a wasteful number, since it uses less digits than its factorization.

388727672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48590965 (or 48590961 counting only the distinct ones).

The product of its digits is 1580544, while the sum is 50.

The square root of 388727672 is about 19716.1779257543. The cubic root of 388727672 is about 729.8189780709.

The spelling of 388727672 in words is "three hundred eighty-eight million, seven hundred twenty-seven thousand, six hundred seventy-two".