1128198274 has 16 divisors (see below), whose sum is σ = 1939905216. Its totient is φ = 482050800.

The previous prime is 1128198257. The next prime is 1128198299. The reversal of 1128198274 is 4728918211.

It is a self number, because there is not a number n which added to its sum of digits gives 1128198274.

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, 117097 + ... + 126364.

It is an arithmetic number, because the mean of its divisors is an integer number (121244076).

Almost surely, 2^1128198274 is an apocalyptic number.

1128198274 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1128198274 is a deficient number, since it is larger than the sum of its proper divisors (811706942).

1128198274 is a wasteful number, since it uses less digits than its factorization.

1128198274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243801.

The product of its digits is 64512, while the sum is 43.

The square root of 1128198274 is about 33588.6628790132. The cubic root of 1128198274 is about 1041.0265609519.

The spelling of 1128198274 in words is "one billion, one hundred twenty-eight million, one hundred ninety-eight thousand, two hundred seventy-four".