628293198 has 32 divisors (see below), whose sum is σ = 1354502016. Its totient is φ = 193141728.

The previous prime is 628293187. The next prime is 628293203. The reversal of 628293198 is 891392826.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98865 + ... + 105027.

It is an arithmetic number, because the mean of its divisors is an integer number (42328188).

Almost surely, 2^628293198 is an apocalyptic number.

628293198 is an abundant number, since it is smaller than the sum of its proper divisors (726208818).

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

628293198 is a wasteful number, since it uses less digits than its factorization.

628293198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7488.

The product of its digits is 373248, while the sum is 48.

The square root of 628293198 is about 25065.7774266030. Note that the first 3 decimals coincide. The cubic root of 628293198 is about 856.4870206926.

The spelling of 628293198 in words is "six hundred twenty-eight million, two hundred ninety-three thousand, one hundred ninety-eight".