3680281820 has 12 divisors (see below), whose sum is σ = 7728591864. Its totient is φ = 1472112720.

The previous prime is 3680281783. The next prime is 3680281823. The reversal of 3680281820 is 281820863.

It is a super-3 number, since 3×3680281820³ (a number of 30 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3680281823) 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, 92007026 + ... + 92007065.

It is an arithmetic number, because the mean of its divisors is an integer number (644049322).

Almost surely, 2^3680281820 is an apocalyptic number.

It is an amenable number.

3680281820 is an abundant number, since it is smaller than the sum of its proper divisors (4048310044).

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

3680281820 is a wasteful number, since it uses less digits than its factorization.

3680281820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184014100 (or 184014098 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 38.

The square root of 3680281820 is about 60665.3263405052. The cubic root of 3680281820 is about 1543.9279359772.

The spelling of 3680281820 in words is "three billion, six hundred eighty million, two hundred eighty-one thousand, eight hundred twenty".