1325804838 has 32 divisors (see below), whose sum is σ = 2881213440. Its totient is φ = 405168480.

The previous prime is 1325804791. The next prime is 1325804839. The reversal of 1325804838 is 8384085231.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1325804838.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325804839) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 184045 + ... + 191112.

It is an arithmetic number, because the mean of its divisors is an integer number (90037920).

Almost surely, 2^1325804838 is an apocalyptic number.

1325804838 is an abundant number, since it is smaller than the sum of its proper divisors (1555408602).

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

1325804838 is a wasteful number, since it uses less digits than its factorization.

1325804838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375212.

The product of its (nonzero) digits is 184320, while the sum is 42.

The square root of 1325804838 is about 36411.6030682528. The cubic root of 1325804838 is about 1098.5669597931.

The spelling of 1325804838 in words is "one billion, three hundred twenty-five million, eight hundred four thousand, eight hundred thirty-eight".