1805142326 has 32 divisors (see below), whose sum is σ = 2942684640. Its totient is φ = 825555456.

The previous prime is 1805142319. The next prime is 1805142401. The reversal of 1805142326 is 6232415081.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1805142292 and 1805142301.

It is a congruent number.

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, 1847150 + ... + 1848126.

It is an arithmetic number, because the mean of its divisors is an integer number (91958895).

Almost surely, 2^1805142326 is an apocalyptic number.

1805142326 is a deficient number, since it is larger than the sum of its proper divisors (1137542314).

1805142326 is a wasteful number, since it uses less digits than its factorization.

1805142326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1568.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 1805142326 is about 42486.9665426940. The cubic root of 1805142326 is about 1217.5976927597.

The spelling of 1805142326 in words is "one billion, eight hundred five million, one hundred forty-two thousand, three hundred twenty-six".