1814380816 has 20 divisors (see below), whose sum is σ = 3533773824. Its totient is φ = 902439200.

The previous prime is 1814380807. The next prime is 1814380819. The reversal of 1814380816 is 6180834181.

It is not an unprimeable number, because it can be changed into a prime (1814380819) 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, 293800 + ... + 299911.

Almost surely, 2^1814380816 is an apocalyptic number.

1814380816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1814380816 is a deficient number, since it is larger than the sum of its proper divisors (1719393008).

1814380816 is a wasteful number, since it uses less digits than its factorization.

1814380816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593910 (or 593904 counting only the distinct ones).

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

The square root of 1814380816 is about 42595.5492510661. The cubic root of 1814380816 is about 1219.6713295410.

The spelling of 1814380816 in words is "one billion, eight hundred fourteen million, three hundred eighty thousand, eight hundred sixteen".