1807713894 has 96 divisors (see below), whose sum is σ = 4314435840. Its totient is φ = 494363520.

The previous prime is 1807713871. The next prime is 1807713923. The reversal of 1807713894 is 4983177081.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6719992 + ... + 6720260.

It is an arithmetic number, because the mean of its divisors is an integer number (44942040).

Almost surely, 2^1807713894 is an apocalyptic number.

1807713894 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1807713894, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2157217920).

1807713894 is an abundant number, since it is smaller than the sum of its proper divisors (2506721946).

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

1807713894 is a wasteful number, since it uses less digits than its factorization.

1807713894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446 (or 385 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 48.

The square root of 1807713894 is about 42517.2187942720. The cubic root of 1807713894 is about 1218.1756064870.

The spelling of 1807713894 in words is "one billion, eight hundred seven million, seven hundred thirteen thousand, eight hundred ninety-four".