628422245 has 32 divisors (see below), whose sum is σ = 889418880. Its totient is φ = 421251840.

The previous prime is 628422233. The next prime is 628422259. The reversal of 628422245 is 542224826.

It is not a de Polignac number, because 628422245 - 2⁴ = 628422229 is a prime.

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 31 ways as a sum of consecutive naturals, for example, 30539 + ... + 46791.

It is an arithmetic number, because the mean of its divisors is an integer number (27794340).

Almost surely, 2^628422245 is an apocalyptic number.

It is an amenable number.

628422245 is a deficient number, since it is larger than the sum of its proper divisors (260996635).

628422245 is a wasteful number, since it uses less digits than its factorization.

628422245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16325.

The product of its digits is 61440, while the sum is 35.

The square root of 628422245 is about 25068.3514615541. The cubic root of 628422245 is about 856.5456554800.

The spelling of 628422245 in words is "six hundred twenty-eight million, four hundred twenty-two thousand, two hundred forty-five".