3873220740 has 120 divisors (see below), whose sum is σ = 12201678720. Its totient is φ = 1032753888.

The previous prime is 3873220733. The next prime is 3873220751. The reversal of 3873220740 is 470223783.

3873220740 is a `hidden beast` number, since 387 + 32 + 207 + 40 = 666.

It is a super-2 number, since 2×3873220740² = 30003677801532295200, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 3873220695 and 3873220704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 388741 + ... + 398579.

It is an arithmetic number, because the mean of its divisors is an integer number (101680656).

Almost surely, 2^3873220740 is an apocalyptic number.

3873220740 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3873220740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6100839360).

3873220740 is an abundant number, since it is smaller than the sum of its proper divisors (8328457980).

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

3873220740 is an frugal number, since it uses more digits than its factorization.

3873220740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9875 (or 9849 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 36.

The square root of 3873220740 is about 62235.2049888164. The cubic root of 3873220740 is about 1570.4498879750.

The spelling of 3873220740 in words is "three billion, eight hundred seventy-three million, two hundred twenty thousand, seven hundred forty".