426381278 has 8 divisors (see below), whose sum is σ = 640405920. Its totient is φ = 212912640.

The previous prime is 426381269. The next prime is 426381281. The reversal of 426381278 is 872183624.

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

It is a congruent number.

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, 137078 + ... + 140153.

It is an arithmetic number, because the mean of its divisors is an integer number (80050740).

Almost surely, 2^426381278 is an apocalyptic number.

426381278 is a deficient number, since it is larger than the sum of its proper divisors (214024642).

426381278 is a wasteful number, since it uses less digits than its factorization.

426381278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278002.

The product of its digits is 129024, while the sum is 41.

The square root of 426381278 is about 20649.0018644970. The cubic root of 426381278 is about 752.6609350310.

The spelling of 426381278 in words is "four hundred twenty-six million, three hundred eighty-one thousand, two hundred seventy-eight".