380821982 has 8 divisors (see below), whose sum is σ = 586671816. Its totient is φ = 185264712.

The previous prime is 380821943. The next prime is 380821993. The reversal of 380821982 is 289128083.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2573048 + ... + 2573195.

It is an arithmetic number, because the mean of its divisors is an integer number (73333977).

Almost surely, 2^380821982 is an apocalyptic number.

380821982 is a deficient number, since it is larger than the sum of its proper divisors (205849834).

380821982 is a wasteful number, since it uses less digits than its factorization.

380821982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5146282.

The product of its (nonzero) digits is 55296, while the sum is 41.

The square root of 380821982 is about 19514.6606939501. The cubic root of 380821982 is about 724.8375264935.

The spelling of 380821982 in words is "three hundred eighty million, eight hundred twenty-one thousand, nine hundred eighty-two".