3858898920 has 128 divisors (see below), whose sum is σ = 12095568000. Its totient is φ = 983628800.

The previous prime is 3858898913. The next prime is 3858898931. The reversal of 3858898920 is 298988583.

It is a super-2 number, since 2×3858898920² = 29782201749554332800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 345991 + ... + 356969.

It is an arithmetic number, because the mean of its divisors is an integer number (94496625).

Almost surely, 2^3858898920 is an apocalyptic number.

3858898920 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 3858898920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6047784000).

3858898920 is an abundant number, since it is smaller than the sum of its proper divisors (8236669080).

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

3858898920 is a wasteful number, since it uses less digits than its factorization.

3858898920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11123 (or 11119 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 60.

The square root of 3858898920 is about 62120.0363811870. The cubic root of 3858898920 is about 1568.5118385349.

The spelling of 3858898920 in words is "three billion, eight hundred fifty-eight million, eight hundred ninety-eight thousand, nine hundred twenty".