1816198124 has 24 divisors (see below), whose sum is σ = 3458131488. Its totient is φ = 829601280.

The previous prime is 1816198103. The next prime is 1816198141. The reversal of 1816198124 is 4218916181.

It is a super-2 number, since 2×1816198124² = 6597151251242238752, which contains 22 as substring.

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

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 7 ways as a sum of consecutive naturals, for example, 174992 + ... + 185079.

It is an arithmetic number, because the mean of its divisors is an integer number (144088812).

Almost surely, 2^1816198124 is an apocalyptic number.

It is an amenable number.

1816198124 is a deficient number, since it is larger than the sum of its proper divisors (1641933364).

1816198124 is a wasteful number, since it uses less digits than its factorization.

1816198124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360185 (or 360183 counting only the distinct ones).

The product of its digits is 27648, while the sum is 41.

The square root of 1816198124 is about 42616.8760469371. The cubic root of 1816198124 is about 1220.0784066782.

The spelling of 1816198124 in words is "one billion, eight hundred sixteen million, one hundred ninety-eight thousand, one hundred twenty-four".