380844778 has 24 divisors (see below), whose sum is σ = 638805600. Its totient is φ = 169783488.

The previous prime is 380844769. The next prime is 380844809. The reversal of 380844778 is 877448083.

It is a happy number.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

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 11 ways as a sum of consecutive naturals, for example, 6358 + ... + 28321.

It is an arithmetic number, because the mean of its divisors is an integer number (26616900).

Almost surely, 2^380844778 is an apocalyptic number.

380844778 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

380844778 is a deficient number, since it is larger than the sum of its proper divisors (257960822).

380844778 is a wasteful number, since it uses less digits than its factorization.

380844778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34734 (or 34717 counting only the distinct ones).

The product of its (nonzero) digits is 1204224, while the sum is 49.

The square root of 380844778 is about 19515.2447589058. The cubic root of 380844778 is about 724.8519891273.

The spelling of 380844778 in words is "three hundred eighty million, eight hundred forty-four thousand, seven hundred seventy-eight".