1807490228838 has 64 divisors (see below), whose sum is σ = 4205510115840. Its totient is φ = 507188505600.

The previous prime is 1807490228807. The next prime is 1807490228851. The reversal of 1807490228838 is 8388220947081.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1153078 + ... + 2223638.

It is an arithmetic number, because the mean of its divisors is an integer number (65711095560).

Almost surely, 2^{1807490228838} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1807490228838, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2102755057920).

1807490228838 is an abundant number, since it is smaller than the sum of its proper divisors (2398019887002).

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

1807490228838 is a wasteful number, since it uses less digits than its factorization.

1807490228838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071293.

The product of its (nonzero) digits is 12386304, while the sum is 60.

The spelling of 1807490228838 in words is "one trillion, eight hundred seven billion, four hundred ninety million, two hundred twenty-eight thousand, eight hundred thirty-eight".