3898209280 has 176 divisors, whose sum is σ = 11154021120. Its totient is φ = 1278148608.

The previous prime is 3898209229. The next prime is 3898209317. The reversal of 3898209280 is 829028983.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 821956 + ... + 826684.

It is an arithmetic number, because the mean of its divisors is an integer number (63375120).

Almost surely, 2^3898209280 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3898209280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5577010560).

3898209280 is an abundant number, since it is smaller than the sum of its proper divisors (7255811840).

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

3898209280 is a wasteful number, since it uses less digits than its factorization.

3898209280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4784 (or 4766 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 49.

The square root of 3898209280 is about 62435.6411034595. The cubic root of 3898209280 is about 1573.8199650173.

The spelling of 3898209280 in words is "three billion, eight hundred ninety-eight million, two hundred nine thousand, two hundred eighty".