1816949050 has 48 divisors (see below), whose sum is σ = 3925677312. Its totient is φ = 612734400.

The previous prime is 1816949011. The next prime is 1816949083. The reversal of 1816949050 is 509496181.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 1816948988 and 1816949006.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21202 + ... + 63901.

It is an arithmetic number, because the mean of its divisors is an integer number (81784944).

Almost surely, 2^1816949050 is an apocalyptic number.

1816949050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1816949050 is an abundant number, since it is smaller than the sum of its proper divisors (2108728262).

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

1816949050 is a wasteful number, since it uses less digits than its factorization.

1816949050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85183 (or 85178 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 43.

The square root of 1816949050 is about 42625.6853317340. The cubic root of 1816949050 is about 1220.2465348769.

The spelling of 1816949050 in words is "one billion, eight hundred sixteen million, nine hundred forty-nine thousand, fifty".