1805520934 has 24 divisors (see below), whose sum is σ = 3151921248. Its totient is φ = 773433360.

The previous prime is 1805520919. The next prime is 1805520971. The reversal of 1805520934 is 4390255081.

It is a super-2 number, since 2×1805520934² = 6519811686224464712, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1805520893 and 1805520902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 390979 + ... + 395569.

It is an arithmetic number, because the mean of its divisors is an integer number (131330052).

Almost surely, 2^1805520934 is an apocalyptic number.

1805520934 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1805520934 is a deficient number, since it is larger than the sum of its proper divisors (1346400314).

1805520934 is a wasteful number, since it uses less digits than its factorization.

1805520934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8620 (or 8613 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 1805520934 is about 42491.4218872468. The cubic root of 1805520934 is about 1217.6828125488.

The spelling of 1805520934 in words is "one billion, eight hundred five million, five hundred twenty thousand, nine hundred thirty-four".