1809336342 has 16 divisors (see below), whose sum is σ = 3947643072. Its totient is φ = 548283720.

The previous prime is 1809336337. The next prime is 1809336391. The reversal of 1809336342 is 2436339081.

It is a self number, because there is not a number n which added to its sum of digits gives 1809336342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13707028 + ... + 13707159.

It is an arithmetic number, because the mean of its divisors is an integer number (246727692).

Almost surely, 2^1809336342 is an apocalyptic number.

1809336342 is an abundant number, since it is smaller than the sum of its proper divisors (2138306730).

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

1809336342 is a wasteful number, since it uses less digits than its factorization.

1809336342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27414203.

The product of its (nonzero) digits is 93312, while the sum is 39.

The square root of 1809336342 is about 42536.2944084226. The cubic root of 1809336342 is about 1218.5399406122.

The spelling of 1809336342 in words is "one billion, eight hundred nine million, three hundred thirty-six thousand, three hundred forty-two".