1198540674 has 24 divisors (see below), whose sum is σ = 2620666620. Its totient is φ = 395847648.

The previous prime is 1198540663. The next prime is 1198540687. The reversal of 1198540674 is 4760458911.

1198540674 is a `hidden beast` number, since 11 + 98 + 540 + 6 + 7 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1115092449 + 83448225 = 33393^2 + 9135^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 303477 + ... + 307400.

Almost surely, 2^1198540674 is an apocalyptic number.

1198540674 is an abundant number, since it is smaller than the sum of its proper divisors (1422125946).

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

1198540674 is a wasteful number, since it uses less digits than its factorization.

1198540674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610994 (or 610991 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 1198540674 is about 34619.9461871332. The cubic root of 1198540674 is about 1062.2276263117.

The spelling of 1198540674 in words is "one billion, one hundred ninety-eight million, five hundred forty thousand, six hundred seventy-four".