3821380278 has 8 divisors (see below), whose sum is σ = 7642760568. Its totient is φ = 1273793424.

The previous prime is 3821380267. The next prime is 3821380279. The reversal of 3821380278 is 8720831283.

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

3821380278 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3821380279) 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 3 ways as a sum of consecutive naturals, for example, 318448351 + ... + 318448362.

It is an arithmetic number, because the mean of its divisors is an integer number (955345071).

Almost surely, 2^3821380278 is an apocalyptic number.

3821380278 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

3821380278 is a wasteful number, since it uses less digits than its factorization.

3821380278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636896718.

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 3821380278 is about 61817.3137397606. The cubic root of 3821380278 is about 1563.4119216281.

The spelling of 3821380278 in words is "three billion, eight hundred twenty-one million, three hundred eighty thousand, two hundred seventy-eight".