380728486 has 8 divisors (see below), whose sum is σ = 573609240. Its totient is φ = 189525408.

The previous prime is 380728477. The next prime is 380728487. The reversal of 380728486 is 684827083.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380728487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 418851 + ... + 419758.

It is an arithmetic number, because the mean of its divisors is an integer number (71701155).

Almost surely, 2^380728486 is an apocalyptic number.

380728486 is a deficient number, since it is larger than the sum of its proper divisors (192880754).

380728486 is a wasteful number, since it uses less digits than its factorization.

380728486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838838.

The product of its (nonzero) digits is 516096, while the sum is 46.

The square root of 380728486 is about 19512.2650146004. The cubic root of 380728486 is about 724.7782031006.

The spelling of 380728486 in words is "three hundred eighty million, seven hundred twenty-eight thousand, four hundred eighty-six".