1803534834 has 32 divisors (see below), whose sum is σ = 3962004480. Its totient is φ = 544774032.

The previous prime is 1803534823. The next prime is 1803534847. The reversal of 1803534834 is 4384353081.

It is a junction number, because it is equal to n+sod(n) for n = 1803534792 and 1803534801.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 341302 + ... + 346545.

It is an arithmetic number, because the mean of its divisors is an integer number (123812640).

Almost surely, 2^1803534834 is an apocalyptic number.

1803534834 is an abundant number, since it is smaller than the sum of its proper divisors (2158469646).

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

1803534834 is a wasteful number, since it uses less digits than its factorization.

1803534834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687894.

The product of its (nonzero) digits is 138240, while the sum is 39.

The square root of 1803534834 is about 42468.0448572806. The cubic root of 1803534834 is about 1217.2361589719.

The spelling of 1803534834 in words is "one billion, eight hundred three million, five hundred thirty-four thousand, eight hundred thirty-four".