3844685401228 has 72 divisors (see below), whose sum is σ = 8214181067232. Its totient is φ = 1566971594496.

The previous prime is 3844685401121. The next prime is 3844685401241. The reversal of 3844685401228 is 8221045864483.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1685025 + ... + 3244792.

It is an arithmetic number, because the mean of its divisors is an integer number (114085848156).

Almost surely, 2^{3844685401228} is an apocalyptic number.

It is an amenable number.

3844685401228 is an abundant number, since it is smaller than the sum of its proper divisors (4369495666004).

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

3844685401228 is a wasteful number, since it uses less digits than its factorization.

3844685401228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4930031 (or 4930022 counting only the distinct ones).

The product of its (nonzero) digits is 11796480, while the sum is 55.

The spelling of 3844685401228 in words is "three trillion, eight hundred forty-four billion, six hundred eighty-five million, four hundred one thousand, two hundred twenty-eight".