378224547 has 4 divisors (see below), whose sum is σ = 504299400. Its totient is φ = 252149696.

The previous prime is 378224533. The next prime is 378224573. The reversal of 378224547 is 745422873.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 378224547 - 2⁷ = 378224419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 378224499 and 378224508.

It is not an unprimeable number, because it can be changed into a prime (378224527) 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 in 3 ways as a sum of consecutive naturals, for example, 63037422 + ... + 63037427.

It is an arithmetic number, because the mean of its divisors is an integer number (126074850).

Almost surely, 2^378224547 is an apocalyptic number.

378224547 is a deficient number, since it is larger than the sum of its proper divisors (126074853).

378224547 is a wasteful number, since it uses less digits than its factorization.

378224547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126074852.

The product of its digits is 376320, while the sum is 42.

The square root of 378224547 is about 19447.9959635948. The cubic root of 378224547 is about 723.1858229265.

The spelling of 378224547 in words is "three hundred seventy-eight million, two hundred twenty-four thousand, five hundred forty-seven".