3385281856 has 42 divisors (see below), whose sum is σ = 7383900650. Its totient is φ = 1538760960.

The previous prime is 3385281839. The next prime is 3385281857. The reversal of 3385281856 is 6581825833.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2957619456 + 427662400 = 54384^2 + 20680^2 .

It is a super-2 number, since 2×3385281856² = 22920266489125609472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3385281857) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 210831 + ... + 226318.

Almost surely, 2^3385281856 is an apocalyptic number.

It is an amenable number.

3385281856 is an abundant number, since it is smaller than the sum of its proper divisors (3998618794).

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

3385281856 is a wasteful number, since it uses less digits than its factorization.

3385281856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437183 (or 437162 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 49.

The square root of 3385281856 is about 58183.1750250878. The cubic root of 3385281856 is about 1501.5216937028.

The spelling of 3385281856 in words is "three billion, three hundred eighty-five million, two hundred eighty-one thousand, eight hundred fifty-six".