380536728 has 64 divisors (see below), whose sum is σ = 1117670400. Its totient is φ = 106442880.

The previous prime is 380536711. The next prime is 380536729. The reversal of 380536728 is 827635083.

It is a self number, because there is not a number n which added to its sum of digits gives 380536728.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380536729) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52008 + ... + 58871.

It is an arithmetic number, because the mean of its divisors is an integer number (17463600).

Almost surely, 2^380536728 is an apocalyptic number.

It is an amenable number.

380536728 is an abundant number, since it is smaller than the sum of its proper divisors (737133672).

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

380536728 is a wasteful number, since it uses less digits than its factorization.

380536728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110912 (or 110908 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 42.

The square root of 380536728 is about 19507.3506145760. The cubic root of 380536728 is about 724.6565018852.

The spelling of 380536728 in words is "three hundred eighty million, five hundred thirty-six thousand, seven hundred twenty-eight".