380811644 has 24 divisors (see below), whose sum is σ = 719379360. Its totient is φ = 175845824.

The previous prime is 380811643. The next prime is 380811689. The reversal of 380811644 is 446118083.

It is a super-3 number, since 3×380811644³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380811643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68699 + ... + 74034.

It is an arithmetic number, because the mean of its divisors is an integer number (29974140).

Almost surely, 2^380811644 is an apocalyptic number.

It is an amenable number.

380811644 is a deficient number, since it is larger than the sum of its proper divisors (338567716).

380811644 is a wasteful number, since it uses less digits than its factorization.

380811644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142789 (or 142787 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 380811644 is about 19514.3958143725. The cubic root of 380811644 is about 724.8309674900.

The spelling of 380811644 in words is "three hundred eighty million, eight hundred eleven thousand, six hundred forty-four".