1814183680 has 36 divisors (see below), whose sum is σ = 4345539912. Its totient is φ = 725672960.

The previous prime is 1814183671. The next prime is 1814183687. The reversal of 1814183680 is 863814181.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1814183687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 707386 + ... + 709945.

It is an arithmetic number, because the mean of its divisors is an integer number (120709442).

Almost surely, 2^1814183680 is an apocalyptic number.

1814183680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1814183680 is an abundant number, since it is smaller than the sum of its proper divisors (2531356232).

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

1814183680 is an equidigital number, since it uses as much as digits as its factorization.

1814183680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1417352 (or 1417338 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 40.

The square root of 1814183680 is about 42593.2351436235. The cubic root of 1814183680 is about 1219.6271547214.

The spelling of 1814183680 in words is "one billion, eight hundred fourteen million, one hundred eighty-three thousand, six hundred eighty".