1949935198 has 4 divisors (see below), whose sum is σ = 2924902800. Its totient is φ = 974967598.

The previous prime is 1949935181. The next prime is 1949935199. The reversal of 1949935198 is 8915399491.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1949935199) by changing a digit.

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 as a sum of consecutive naturals, namely, 487483798 + ... + 487483801.

It is an arithmetic number, because the mean of its divisors is an integer number (731225700).

Almost surely, 2^1949935198 is an apocalyptic number.

1949935198 is a deficient number, since it is larger than the sum of its proper divisors (974967602).

1949935198 is an equidigital number, since it uses as much as digits as its factorization.

1949935198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974967601.

The product of its digits is 3149280, while the sum is 58.

The square root of 1949935198 is about 44158.0705873796. The cubic root of 1949935198 is about 1249.3191381157.

The spelling of 1949935198 in words is "one billion, nine hundred forty-nine million, nine hundred thirty-five thousand, one hundred ninety-eight".