628490196 has 18 divisors (see below), whose sum is σ = 1588683642. Its totient is φ = 209496720.

The previous prime is 628490183. The next prime is 628490207. The reversal of 628490196 is 691094826.

It is a happy number.

628490196 is a `hidden beast` number, since 628 + 4 + 9 + 0 + 19 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 603390096 + 25100100 = 24564^2 + 5010^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8728995 + ... + 8729066.

Almost surely, 2^628490196 is an apocalyptic number.

It is an amenable number.

628490196 is an abundant number, since it is smaller than the sum of its proper divisors (960193446).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

628490196 is a wasteful number, since it uses less digits than its factorization.

628490196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17458071 (or 17458066 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 628490196 is about 25069.7067394096. The cubic root of 628490196 is about 856.5765269928.

The spelling of 628490196 in words is "six hundred twenty-eight million, four hundred ninety thousand, one hundred ninety-six".