3857769272 has 64 divisors (see below), whose sum is σ = 8770560000. Its totient is φ = 1553924736.

The previous prime is 3857769271. The next prime is 3857769299. The reversal of 3857769272 is 2729677583.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3857769271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120854 + ... + 149402.

It is an arithmetic number, because the mean of its divisors is an integer number (137040000).

Almost surely, 2^3857769272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3857769272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4385280000).

3857769272 is an abundant number, since it is smaller than the sum of its proper divisors (4912790728).

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

3857769272 is a wasteful number, since it uses less digits than its factorization.

3857769272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28708 (or 28704 counting only the distinct ones).

The product of its digits is 8890560, while the sum is 56.

The square root of 3857769272 is about 62110.9432547921. The cubic root of 3857769272 is about 1568.3587690347.

The spelling of 3857769272 in words is "three billion, eight hundred fifty-seven million, seven hundred sixty-nine thousand, two hundred seventy-two".