378993452 has 6 divisors (see below), whose sum is σ = 663238548. Its totient is φ = 189496724.

The previous prime is 378993451. The next prime is 378993481. The reversal of 378993452 is 254399873.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 378993452.

It is not an unprimeable number, because it can be changed into a prime (378993451) 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 as a sum of consecutive naturals, namely, 47374178 + ... + 47374185.

It is an arithmetic number, because the mean of its divisors is an integer number (110539758).

Almost surely, 2^378993452 is an apocalyptic number.

It is an amenable number.

378993452 is a deficient number, since it is larger than the sum of its proper divisors (284245096).

378993452 is a wasteful number, since it uses less digits than its factorization.

378993452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94748367 (or 94748365 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 50.

The square root of 378993452 is about 19467.7541591217. The cubic root of 378993452 is about 723.6755538839.

The spelling of 378993452 in words is "three hundred seventy-eight million, nine hundred ninety-three thousand, four hundred fifty-two".