3881820600 has 144 divisors (see below), whose sum is σ = 14898845520. Its totient is φ = 887270400.

The previous prime is 3881820599. The next prime is 3881820601. The reversal of 3881820600 is 60281883.

3881820600 is a `hidden beast` number, since 38 + 8 + 18 + 2 + 0 + 600 = 666.

It is an interprime number because it is at equal distance from previous prime (3881820599) and next prime (3881820601).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3881820601) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 141441 + ... + 166640.

It is an arithmetic number, because the mean of its divisors is an integer number (103464205).

Almost surely, 2^3881820600 is an apocalyptic number.

3881820600 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3881820600 is an abundant number, since it is smaller than the sum of its proper divisors (11017024920).

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

3881820600 is a wasteful number, since it uses less digits than its factorization.

3881820600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308110 (or 308098 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 3881820600 is about 62304.2582814369. The cubic root of 3881820600 is about 1571.6113387579.

The spelling of 3881820600 in words is "three billion, eight hundred eighty-one million, eight hundred twenty thousand, six hundred".