1811348080 has 40 divisors (see below), whose sum is σ = 4220265600. Its totient is φ = 723011328.

The previous prime is 1811348057. The next prime is 1811348083. The reversal of 1811348080 is 808431181.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1811348083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14686 + ... + 61954.

It is an arithmetic number, because the mean of its divisors is an integer number (105506640).

Almost surely, 2^1811348080 is an apocalyptic number.

1811348080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1811348080 is an abundant number, since it is smaller than the sum of its proper divisors (2408917520).

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

1811348080 is a wasteful number, since it uses less digits than its factorization.

1811348080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47761 (or 47755 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 34.

The square root of 1811348080 is about 42559.9351503265. The cubic root of 1811348080 is about 1218.9913906958.

The spelling of 1811348080 in words is "one billion, eight hundred eleven million, three hundred forty-eight thousand, eighty".