378424286 has 4 divisors (see below), whose sum is σ = 567636432. Its totient is φ = 189212142.

The previous prime is 378424283. The next prime is 378424327. The reversal of 378424286 is 682424873.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378424283) 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, 94606070 + ... + 94606073.

It is an arithmetic number, because the mean of its divisors is an integer number (141909108).

Almost surely, 2^378424286 is an apocalyptic number.

378424286 is a deficient number, since it is larger than the sum of its proper divisors (189212146).

378424286 is a wasteful number, since it uses less digits than its factorization.

378424286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189212145.

The product of its digits is 516096, while the sum is 44.

The square root of 378424286 is about 19453.1304935735. The cubic root of 378424286 is about 723.3131044529.

The spelling of 378424286 in words is "three hundred seventy-eight million, four hundred twenty-four thousand, two hundred eighty-six".