1831040838 has 36 divisors (see below), whose sum is σ = 4329338364. Its totient is φ = 554678400.

The previous prime is 1831040819. The next prime is 1831040863. The reversal of 1831040838 is 8380401381.

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 17 ways as a sum of consecutive naturals, for example, 600598 + ... + 603638.

It is an arithmetic number, because the mean of its divisors is an integer number (120259399).

Almost surely, 2^1831040838 is an apocalyptic number.

1831040838 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1831040838 is an abundant number, since it is smaller than the sum of its proper divisors (2498297526).

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

1831040838 is an equidigital number, since it uses as much as digits as its factorization.

1831040838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6101 (or 3057 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 1831040838 is about 42790.6629768691. The cubic root of 1831040838 is about 1223.3930534011.

The spelling of 1831040838 in words is "one billion, eight hundred thirty-one million, forty thousand, eight hundred thirty-eight".