390378834226 has 8 divisors (see below), whose sum is σ = 585972933120. Its totient is φ = 195054523188.

The previous prime is 390378834217. The next prime is 390378834257. The reversal of 390378834226 is 622438873093.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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, 67443346 + ... + 67449133.

It is an arithmetic number, because the mean of its divisors is an integer number (73246616640).

Almost surely, 2^390378834226 is an apocalyptic number.

390378834226 is a deficient number, since it is larger than the sum of its proper divisors (195594098894).

390378834226 is a wasteful number, since it uses less digits than its factorization.

390378834226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134893928.

The product of its (nonzero) digits is 10450944, while the sum is 55.

The spelling of 390378834226 in words is "three hundred ninety billion, three hundred seventy-eight million, eight hundred thirty-four thousand, two hundred twenty-six".