3881458620 has 144 divisors (see below), whose sum is σ = 12726709632. Its totient is φ = 951874560.

The previous prime is 3881458613. The next prime is 3881458627. The reversal of 3881458620 is 268541883.

3881458620 is a `hidden beast` number, since 3 + 8 + 8 + 14 + 5 + 8 + 620 = 666.

It is an interprime number because it is at equal distance from previous prime (3881458613) and next prime (3881458627).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3881458627) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 654589 + ... + 660491.

It is an arithmetic number, because the mean of its divisors is an integer number (88379928).

Almost surely, 2^3881458620 is an apocalyptic number.

3881458620 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 3881458620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6363354816).

3881458620 is an abundant number, since it is smaller than the sum of its proper divisors (8845251012).

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

3881458620 is a wasteful number, since it uses less digits than its factorization.

3881458620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6212 (or 6207 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The square root of 3881458620 is about 62301.3532758318. The cubic root of 3881458620 is about 1571.5624862893.

The spelling of 3881458620 in words is "three billion, eight hundred eighty-one million, four hundred fifty-eight thousand, six hundred twenty".