1830545540 has 24 divisors (see below), whose sum is σ = 3976703640. Its totient is φ = 706969088.

The previous prime is 1830545537. The next prime is 1830545543. The reversal of 1830545540 is 455450381.

It is an interprime number because it is at equal distance from previous prime (1830545537) and next prime (1830545543).

It can be written as a sum of positive squares in 4 ways, for example, as 679436356 + 1151109184 = 26066^2 + 33928^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1830545540.

It is not an unprimeable number, because it can be changed into a prime (1830545543) 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, 1577477 + ... + 1578636.

It is an arithmetic number, because the mean of its divisors is an integer number (165695985).

Almost surely, 2^1830545540 is an apocalyptic number.

1830545540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1830545540 is an abundant number, since it is smaller than the sum of its proper divisors (2146158100).

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

1830545540 is a wasteful number, since it uses less digits than its factorization.

1830545540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3156151 (or 3156149 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 35.

The square root of 1830545540 is about 42784.8751312891. The cubic root of 1830545540 is about 1223.2827338560.

The spelling of 1830545540 in words is "one billion, eight hundred thirty million, five hundred forty-five thousand, five hundred forty".