3649785260 has 24 divisors (see below), whose sum is σ = 8361326736. Its totient is φ = 1327194560.

The previous prime is 3649785239. The next prime is 3649785263. The reversal of 3649785260 is 625879463.

It is a happy number.

It is a super-2 number, since 2×3649785260² = 26641864888226535200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3649785199 and 3649785208.

It is not an unprimeable number, because it can be changed into a prime (3649785263) 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 7 ways as a sum of consecutive naturals, for example, 8294747 + ... + 8295186.

It is an arithmetic number, because the mean of its divisors is an integer number (348388614).

Almost surely, 2^3649785260 is an apocalyptic number.

It is an amenable number.

3649785260 is an abundant number, since it is smaller than the sum of its proper divisors (4711541476).

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

3649785260 is a wasteful number, since it uses less digits than its factorization.

3649785260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16589953 (or 16589951 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 50.

The square root of 3649785260 is about 60413.4526409474. The cubic root of 3649785260 is about 1539.6515290699.

The spelling of 3649785260 in words is "three billion, six hundred forty-nine million, seven hundred eighty-five thousand, two hundred sixty".