1820143848 has 16 divisors (see below), whose sum is σ = 4550359680. Its totient is φ = 606714608.

The previous prime is 1820143799. The next prime is 1820143867. The reversal of 1820143848 is 8483410281.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37919640 + ... + 37919687.

It is an arithmetic number, because the mean of its divisors is an integer number (284397480).

Almost surely, 2^1820143848 is an apocalyptic number.

It is an amenable number.

1820143848 is an abundant number, since it is smaller than the sum of its proper divisors (2730215832).

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

1820143848 is a wasteful number, since it uses less digits than its factorization.

1820143848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75839336 (or 75839332 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 39.

The square root of 1820143848 is about 42663.1439066555. The cubic root of 1820143848 is about 1220.9613152394.

The spelling of 1820143848 in words is "one billion, eight hundred twenty million, one hundred forty-three thousand, eight hundred forty-eight".