628224259 has 8 divisors (see below), whose sum is σ = 686079072. Its totient is φ = 571730880.

The previous prime is 628224241. The next prime is 628224293. The reversal of 628224259 is 952422826.

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

It is a cyclic number.

It is not a de Polignac number, because 628224259 - 2⁹ = 628223747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (628224209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 339394 + ... + 341239.

It is an arithmetic number, because the mean of its divisors is an integer number (85759884).

Almost surely, 2^628224259 is an apocalyptic number.

628224259 is a deficient number, since it is larger than the sum of its proper divisors (57854813).

628224259 is a wasteful number, since it uses less digits than its factorization.

628224259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680717.

The product of its digits is 138240, while the sum is 40.

The square root of 628224259 is about 25064.4022270630. The cubic root of 628224259 is about 856.4556937481.

It can be divided in two parts, 62822 and 4259, that added together give a square (67081 = 259²).

The spelling of 628224259 in words is "six hundred twenty-eight million, two hundred twenty-four thousand, two hundred fifty-nine".