628422244 has 24 divisors (see below), whose sum is σ = 1119872768. Its totient is φ = 308478240.

The previous prime is 628422233. The next prime is 628422259. The reversal of 628422244 is 442224826.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145987 + ... + 150229.

Almost surely, 2^628422244 is an apocalyptic number.

It is an amenable number.

628422244 is a deficient number, since it is larger than the sum of its proper divisors (491450524).

628422244 is a wasteful number, since it uses less digits than its factorization.

628422244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4915 (or 4913 counting only the distinct ones).

The product of its digits is 49152, while the sum is 34.

The square root of 628422244 is about 25068.3514416086. The cubic root of 628422244 is about 856.5456550257.

The spelling of 628422244 in words is "six hundred twenty-eight million, four hundred twenty-two thousand, two hundred forty-four".