628199080 has 16 divisors (see below), whose sum is σ = 1413448020. Its totient is φ = 251279616.

The previous prime is 628199059. The next prime is 628199081. The reversal of 628199080 is 80991826.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 614345796 + 13853284 = 24786^2 + 3722^2 .

It is a super-2 number, since 2×628199080² = 789268168225692800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (628199081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7852449 + ... + 7852528.

Almost surely, 2^628199080 is an apocalyptic number.

It is an amenable number.

628199080 is an abundant number, since it is smaller than the sum of its proper divisors (785248940).

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

628199080 is a wasteful number, since it uses less digits than its factorization.

628199080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15704988 (or 15704984 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 43.

The square root of 628199080 is about 25063.8999359637. The cubic root of 628199080 is about 856.4442514510. Note that the first 3 decimals are identical.

The spelling of 628199080 in words is "six hundred twenty-eight million, one hundred ninety-nine thousand, eighty".