3855430488 has 128 divisors (see below), whose sum is σ = 12183736320. Its totient is φ = 989314560.

The previous prime is 3855430487. The next prime is 3855430507. The reversal of 3855430488 is 8840345583.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3855430487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56953 + ... + 104663.

It is an arithmetic number, because the mean of its divisors is an integer number (95185440).

Almost surely, 2^3855430488 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 3855430488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6091868160).

3855430488 is an abundant number, since it is smaller than the sum of its proper divisors (8328305832).

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

3855430488 is a wasteful number, since it uses less digits than its factorization.

3855430488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47777 (or 47773 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 48.

The square root of 3855430488 is about 62092.1129290991. The cubic root of 3855430488 is about 1568.0417642544.

The spelling of 3855430488 in words is "three billion, eight hundred fifty-five million, four hundred thirty thousand, four hundred eighty-eight".