3873923940 has 24 divisors (see below), whose sum is σ = 10846987200. Its totient is φ = 1033046368.

The previous prime is 3873923873. The next prime is 3873923941. The reversal of 3873923940 is 493293783.

It is a self number, because there is not a number n which added to its sum of digits gives 3873923940.

It is not an unprimeable number, because it can be changed into a prime (3873923941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32282640 + ... + 32282759.

It is an arithmetic number, because the mean of its divisors is an integer number (451957800).

Almost surely, 2^3873923940 is an apocalyptic number.

3873923940 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3873923940 is an abundant number, since it is smaller than the sum of its proper divisors (6973063260).

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

3873923940 is a wasteful number, since it uses less digits than its factorization.

3873923940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64565411 (or 64565409 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 48.

The square root of 3873923940 is about 62240.8542679163. The cubic root of 3873923940 is about 1570.5449228835.

The spelling of 3873923940 in words is "three billion, eight hundred seventy-three million, nine hundred twenty-three thousand, nine hundred forty".