844194471740 has 24 divisors (see below), whose sum is σ = 1806257607840. Its totient is φ = 331306509248.

The previous prime is 844194471719. The next prime is 844194471749. The reversal of 844194471740 is 47174491448.

It is a super-2 number, since 2×844194471740² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (844194471749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 398203880 + ... + 398205999.

It is an arithmetic number, because the mean of its divisors is an integer number (75260733660).

Almost surely, 2^844194471740 is an apocalyptic number.

It is an amenable number.

844194471740 is an abundant number, since it is smaller than the sum of its proper divisors (962063136100).

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

844194471740 is a wasteful number, since it uses less digits than its factorization.

844194471740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796409941 (or 796409939 counting only the distinct ones).

The product of its (nonzero) digits is 3612672, while the sum is 53.

The spelling of 844194471740 in words is "eight hundred forty-four billion, one hundred ninety-four million, four hundred seventy-one thousand, seven hundred forty".