1198425228 has 384 divisors, whose sum is σ = 4064256000. Its totient is φ = 264591360.

The previous prime is 1198425211. The next prime is 1198425253. The reversal of 1198425228 is 8225248911.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 1198425228.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 13465408 + ... + 13465496.

It is an arithmetic number, because the mean of its divisors is an integer number (10584000).

Almost surely, 2^1198425228 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1198425228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2032128000).

1198425228 is an abundant number, since it is smaller than the sum of its proper divisors (2865830772).

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

1198425228 is a wasteful number, since it uses less digits than its factorization.

1198425228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205 (or 203 counting only the distinct ones).

The product of its digits is 92160, while the sum is 42.

The square root of 1198425228 is about 34618.2788133668. The cubic root of 1198425228 is about 1062.1935198713.

It can be divided in two parts, 1198425 and 228, that multiplied together give a square (273240900 = 16530²).

The spelling of 1198425228 in words is "one billion, one hundred ninety-eight million, four hundred twenty-five thousand, two hundred twenty-eight".