830291540 has 24 divisors (see below), whose sum is σ = 1877736840. Its totient is φ = 306569088.

The previous prime is 830291531. The next prime is 830291551. The reversal of 830291540 is 45192038.

It can be written as a sum of positive squares in 4 ways, for example, as 44944 + 830246596 = 212^2 + 28814^2 .

It is a junction number, because it is equal to n+sod(n) for n = 830291497 and 830291506.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1596455 + ... + 1596974.

It is an arithmetic number, because the mean of its divisors is an integer number (78239035).

Almost surely, 2^830291540 is an apocalyptic number.

It is an amenable number.

830291540 is an abundant number, since it is smaller than the sum of its proper divisors (1047445300).

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

830291540 is a wasteful number, since it uses less digits than its factorization.

830291540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3193451 (or 3193449 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 830291540 is about 28814.7798881060. The cubic root of 830291540 is about 939.8896580907.

The spelling of 830291540 in words is "eight hundred thirty million, two hundred ninety-one thousand, five hundred forty".