3898634880 has 256 divisors, whose sum is σ = 14340188160. Its totient is φ = 882462720.

The previous prime is 3898634851. The next prime is 3898634963. The reversal of 3898634880 is 884368983.

It is a super-2 number, since 2×3898634880² = 30398707855105228800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3898634880.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1436725 + ... + 1439435.

It is an arithmetic number, because the mean of its divisors is an integer number (56016360).

Almost surely, 2^3898634880 is an apocalyptic number.

3898634880 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 3898634880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7170094080).

3898634880 is an abundant number, since it is smaller than the sum of its proper divisors (10441553280).

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

3898634880 is a wasteful number, since it uses less digits than its factorization.

3898634880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2847 (or 2835 counting only the distinct ones).

The product of its (nonzero) digits is 7962624, while the sum is 57.

The square root of 3898634880 is about 62439.0493201170. The cubic root of 3898634880 is about 1573.8772386143.

The spelling of 3898634880 in words is "three billion, eight hundred ninety-eight million, six hundred thirty-four thousand, eight hundred eighty".