378365646 has 8 divisors (see below), whose sum is σ = 756731304. Its totient is φ = 126121880.

The previous prime is 378365629. The next prime is 378365653. The reversal of 378365646 is 646563873.

It is a happy number.

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

378365646 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 378365595 and 378365604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31530465 + ... + 31530476.

It is an arithmetic number, because the mean of its divisors is an integer number (94591413).

Almost surely, 2^378365646 is an apocalyptic number.

378365646 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.

378365646 is a wasteful number, since it uses less digits than its factorization.

378365646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63060946.

The product of its digits is 2177280, while the sum is 48.

The square root of 378365646 is about 19451.6232227544. The cubic root of 378365646 is about 723.2757413898.

The spelling of 378365646 in words is "three hundred seventy-eight million, three hundred sixty-five thousand, six hundred forty-six".