378722378 has 8 divisors (see below), whose sum is σ = 576084960. Its totient is φ = 186694060.

The previous prime is 378722363. The next prime is 378722387. The reversal of 378722378 is 873227873.

It is a happy number.

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

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1333388 + ... + 1333671.

It is an arithmetic number, because the mean of its divisors is an integer number (72010620).

Almost surely, 2^378722378 is an apocalyptic number.

378722378 is a deficient number, since it is larger than the sum of its proper divisors (197362582).

378722378 is a wasteful number, since it uses less digits than its factorization.

378722378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2667132.

The product of its digits is 790272, while the sum is 47.

The square root of 378722378 is about 19460.7907855770. The cubic root of 378722378 is about 723.5029770979.

The spelling of 378722378 in words is "three hundred seventy-eight million, seven hundred twenty-two thousand, three hundred seventy-eight".