628441286 has 8 divisors (see below), whose sum is σ = 1028358504. Its totient is φ = 285655120.

The previous prime is 628441279. The next prime is 628441301. The reversal of 628441286 is 682144826.

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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14282735 + ... + 14282778.

It is an arithmetic number, because the mean of its divisors is an integer number (128544813).

Almost surely, 2^628441286 is an apocalyptic number.

628441286 is a deficient number, since it is larger than the sum of its proper divisors (399917218).

628441286 is a wasteful number, since it uses less digits than its factorization.

628441286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28565526.

The product of its digits is 147456, while the sum is 41.

The square root of 628441286 is about 25068.7312403320. The cubic root of 628441286 is about 856.5543064156.

The spelling of 628441286 in words is "six hundred twenty-eight million, four hundred forty-one thousand, two hundred eighty-six".