1830897540 has 48 divisors (see below), whose sum is σ = 5696127360. Its totient is φ = 488239200.

The previous prime is 1830897539. The next prime is 1830897553. The reversal of 1830897540 is 457980381.

1830897540 is a `hidden beast` number, since 18 + 3 + 0 + 8 + 97 + 540 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1694736 + ... + 1695815.

It is an arithmetic number, because the mean of its divisors is an integer number (118669320).

Almost surely, 2^1830897540 is an apocalyptic number.

1830897540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1830897540 is an abundant number, since it is smaller than the sum of its proper divisors (3865229820).

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

1830897540 is a wasteful number, since it uses less digits than its factorization.

1830897540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3390569 (or 3390561 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 1830897540 is about 42788.9885367719. The cubic root of 1830897540 is about 1223.3611381561.

The spelling of 1830897540 in words is "one billion, eight hundred thirty million, eight hundred ninety-seven thousand, five hundred forty".