378842593 has 8 divisors (see below), whose sum is σ = 391238120. Its totient is φ = 366560640.

The previous prime is 378842587. The next prime is 378842609. The reversal of 378842593 is 395248873.

It can be written as a sum of positive squares in 4 ways, for example, as 116791249 + 262051344 = 10807^2 + 16188^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 378842593 - 2⁵ = 378842561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (378842533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21588 + ... + 34981.

It is an arithmetic number, because the mean of its divisors is an integer number (48904765).

Almost surely, 2^378842593 is an apocalyptic number.

It is an amenable number.

378842593 is a deficient number, since it is larger than the sum of its proper divisors (12395527).

378842593 is a wasteful number, since it uses less digits than its factorization.

378842593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56787.

The product of its digits is 1451520, while the sum is 49.

The square root of 378842593 is about 19463.8791868425. The cubic root of 378842593 is about 723.5795210382.

The spelling of 378842593 in words is "three hundred seventy-eight million, eight hundred forty-two thousand, five hundred ninety-three".