3663873220 has 24 divisors (see below), whose sum is σ = 8793296064. Its totient is φ = 1256185056.

The previous prime is 3663873209. The next prime is 3663873223. The reversal of 3663873220 is 223783663.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (3663873223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13085122 + ... + 13085401.

It is an arithmetic number, because the mean of its divisors is an integer number (366387336).

Almost surely, 2^3663873220 is an apocalyptic number.

It is an amenable number.

3663873220 is an abundant number, since it is smaller than the sum of its proper divisors (5129422844).

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

3663873220 is a wasteful number, since it uses less digits than its factorization.

3663873220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26170539 (or 26170537 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 40.

The square root of 3663873220 is about 60529.9365603500. The cubic root of 3663873220 is about 1541.6299743041.

The spelling of 3663873220 in words is "three billion, six hundred sixty-three million, eight hundred seventy-three thousand, two hundred twenty".