378224469 has 24 divisors (see below), whose sum is σ = 657234240. Its totient is φ = 204752448.

The previous prime is 378224453. The next prime is 378224477. The reversal of 378224469 is 964422873.

It is not a de Polignac number, because 378224469 - 2⁴ = 378224453 is a prime.

It is a super-2 number, since 2×378224469² = 286107497900663922, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378224419) 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 23 ways as a sum of consecutive naturals, for example, 156792 + ... + 159185.

It is an arithmetic number, because the mean of its divisors is an integer number (27384760).

Almost surely, 2^378224469 is an apocalyptic number.

It is an amenable number.

378224469 is a deficient number, since it is larger than the sum of its proper divisors (279009771).

378224469 is a wasteful number, since it uses less digits than its factorization.

378224469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316009 (or 316006 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 378224469 is about 19447.9939582467. The cubic root of 378224469 is about 723.1857732131.

The spelling of 378224469 in words is "three hundred seventy-eight million, two hundred twenty-four thousand, four hundred sixty-nine".