378407222 has 4 divisors (see below), whose sum is σ = 567610836. Its totient is φ = 189203610.

The previous prime is 378407221. The next prime is 378407231. The reversal of 378407222 is 222704873.

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 (378407221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94601804 + ... + 94601807.

It is an arithmetic number, because the mean of its divisors is an integer number (141902709).

Almost surely, 2^378407222 is an apocalyptic number.

378407222 is a deficient number, since it is larger than the sum of its proper divisors (189203614).

378407222 is a wasteful number, since it uses less digits than its factorization.

378407222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189203613.

The product of its (nonzero) digits is 37632, while the sum is 35.

The square root of 378407222 is about 19452.6918959819. The cubic root of 378407222 is about 723.3022323526.

The spelling of 378407222 in words is "three hundred seventy-eight million, four hundred seven thousand, two hundred twenty-two".