1830913807 has 4 divisors (see below), whose sum is σ = 1843039216. Its totient is φ = 1818788400.

The previous prime is 1830913741. The next prime is 1830913817. The reversal of 1830913807 is 7083190381.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1830913807 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1830913807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1830913817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6062478 + ... + 6062779.

It is an arithmetic number, because the mean of its divisors is an integer number (460759804).

Almost surely, 2^1830913807 is an apocalyptic number.

1830913807 is a deficient number, since it is larger than the sum of its proper divisors (12125409).

1830913807 is a wasteful number, since it uses less digits than its factorization.

1830913807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12125408.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 1830913807 is about 42789.1786203007. The cubic root of 1830913807 is about 1223.3647612164.

The spelling of 1830913807 in words is "one billion, eight hundred thirty million, nine hundred thirteen thousand, eight hundred seven".