378472441 has 2 divisors, whose sum is σ = 378472442. Its totient is φ = 378472440.

The previous prime is 378472439. The next prime is 378472477. The reversal of 378472441 is 144274873.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 345811216 + 32661225 = 18596^2 + 5715^2 .

It is a cyclic number.

It is not a de Polignac number, because 378472441 - 2¹ = 378472439 is a prime.

Together with 378472439, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 378472394 and 378472403.

It is not a weakly prime, because it can be changed into another prime (378472141) 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, 189236220 + 189236221.

It is an arithmetic number, because the mean of its divisors is an integer number (189236221).

Almost surely, 2^378472441 is an apocalyptic number.

It is an amenable number.

378472441 is a deficient number, since it is larger than the sum of its proper divisors (1).

378472441 is an equidigital number, since it uses as much as digits as its factorization.

378472441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 150528, while the sum is 40.

The square root of 378472441 is about 19454.3681727267. The cubic root of 378472441 is about 723.3437840071.

The spelling of 378472441 in words is "three hundred seventy-eight million, four hundred seventy-two thousand, four hundred forty-one".