3853390235940 has 216 divisors, whose sum is σ = 13609391540472. Its totient is φ = 879969807360.

The previous prime is 3853390235869. The next prime is 3853390236023. The reversal of 3853390235940 is 495320933583.

3853390235940 is a `hidden beast` number, since 38 + 5 + 339 + 0 + 235 + 9 + 40 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1182577951296 + 2670812284644 = 1087464^2 + 1634262^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 9476410 + ... + 9874670.

It is an arithmetic number, because the mean of its divisors is an integer number (63006442317).

Almost surely, 2^{3853390235940} is an apocalyptic number.

3853390235940 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3853390235940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6804695770236).

3853390235940 is an abundant number, since it is smaller than the sum of its proper divisors (9756001304532).

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

3853390235940 is a wasteful number, since it uses less digits than its factorization.

3853390235940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399387 (or 399375 counting only the distinct ones).

The product of its (nonzero) digits is 10497600, while the sum is 54.

The spelling of 3853390235940 in words is "three trillion, eight hundred fifty-three billion, three hundred ninety million, two hundred thirty-five thousand, nine hundred forty".