1961024198 has 24 divisors (see below), whose sum is σ = 3514274352. Its totient is φ = 817722864.

The previous prime is 1961024179. The next prime is 1961024201. The reversal of 1961024198 is 8914201691.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 266786 + ... + 274037.

It is an arithmetic number, because the mean of its divisors is an integer number (146428098).

Almost surely, 2^1961024198 is an apocalyptic number.

1961024198 is a deficient number, since it is larger than the sum of its proper divisors (1553250154).

1961024198 is a wasteful number, since it uses less digits than its factorization.

1961024198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540876 (or 540869 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 41.

The square root of 1961024198 is about 44283.4528689893. The cubic root of 1961024198 is about 1251.6828955134.

The spelling of 1961024198 in words is "one billion, nine hundred sixty-one million, twenty-four thousand, one hundred ninety-eight".