3857388 has 12 divisors (see below), whose sum is σ = 9000600. Its totient is φ = 1285792.

The previous prime is 3857383. The next prime is 3857417. The reversal of 3857388 is 8837583.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (3857383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 160713 + ... + 160736.

It is an arithmetic number, because the mean of its divisors is an integer number (750050).

Almost surely, 2^3857388 is an apocalyptic number.

It is an amenable number.

3857388 is an abundant number, since it is smaller than the sum of its proper divisors (5143212).

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

3857388 is a wasteful number, since it uses less digits than its factorization.

3857388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321456 (or 321454 counting only the distinct ones).

The product of its digits is 161280, while the sum is 42.

The square root of 3857388 is about 1964.0234214489. The cubic root of 3857388 is about 156.8307099193.

The spelling of 3857388 in words is "three million, eight hundred fifty-seven thousand, three hundred eighty-eight".