1816452416 has 28 divisors (see below), whose sum is σ = 3761244192. Its totient is φ = 868737408.

The previous prime is 1816452401. The next prime is 1816452461. The reversal of 1816452416 is 6142546181.

It is a self number, because there is not a number n which added to its sum of digits gives 1816452416.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 615530 + ... + 618473.

Almost surely, 2^1816452416 is an apocalyptic number.

1816452416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1816452416 is an abundant number, since it is smaller than the sum of its proper divisors (1944791776).

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

1816452416 is a wasteful number, since it uses less digits than its factorization.

1816452416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1234038 (or 1234028 counting only the distinct ones).

The product of its digits is 46080, while the sum is 38.

The square root of 1816452416 is about 42619.8594084964. The cubic root of 1816452416 is about 1220.1353464461.

Adding to 1816452416 its reverse (6142546181), we get a palindrome (7958998597).

The spelling of 1816452416 in words is "one billion, eight hundred sixteen million, four hundred fifty-two thousand, four hundred sixteen".