1198851828 has 12 divisors (see below), whose sum is σ = 2797320960. Its totient is φ = 399617272.

The previous prime is 1198851817. The next prime is 1198851833. The reversal of 1198851828 is 8281588911.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49952148 + ... + 49952171.

It is an arithmetic number, because the mean of its divisors is an integer number (233110080).

Almost surely, 2^1198851828 is an apocalyptic number.

It is an amenable number.

1198851828 is an abundant number, since it is smaller than the sum of its proper divisors (1598469132).

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

1198851828 is a wasteful number, since it uses less digits than its factorization.

1198851828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99904326 (or 99904324 counting only the distinct ones).

The product of its digits is 368640, while the sum is 51.

The square root of 1198851828 is about 34624.4397499801. The cubic root of 1198851828 is about 1062.3195402490.

The spelling of 1198851828 in words is "one billion, one hundred ninety-eight million, eight hundred fifty-one thousand, eight hundred twenty-eight".