1830494540 has 48 divisors (see below), whose sum is σ = 4396702464. Its totient is φ = 627096000.

The previous prime is 1830494539. The next prime is 1830494573. The reversal of 1830494540 is 454940381.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1830494494 and 1830494503.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 198635 + ... + 207645.

It is an arithmetic number, because the mean of its divisors is an integer number (91597968).

Almost surely, 2^1830494540 is an apocalyptic number.

1830494540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1830494540 is an abundant number, since it is smaller than the sum of its proper divisors (2566207924).

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

1830494540 is a wasteful number, since it uses less digits than its factorization.

1830494540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10478 (or 10476 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 1830494540 is about 42784.2791221262. The cubic root of 1830494540 is about 1223.2713733085.

The spelling of 1830494540 in words is "one billion, eight hundred thirty million, four hundred ninety-four thousand, five hundred forty".