3489660928 has 58 divisors (see below), whose sum is σ = 7516192754. Its totient is φ = 1610612736.

The previous prime is 3489660919. The next prime is 3489660929. The reversal of 3489660928 is 8290669843.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2415919104 + 1073741824 = 49152^2 + 32768^2 .

It is a nialpdrome in base 4, base 8 and base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3489660929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (3) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 268435450 + ... + 268435462.

Almost surely, 2^3489660928 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 3489660928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3758096377).

3489660928 is an abundant number, since it is smaller than the sum of its proper divisors (4026531826).

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

3489660928 is an frugal number, since it uses more digits than its factorization.

3489660928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69 (or 15 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 55.

The square root of 3489660928 is about 59073.3520972020. The cubic root of 3489660928 is about 1516.7979870246.

The spelling of 3489660928 in words is "three billion, four hundred eighty-nine million, six hundred sixty thousand, nine hundred twenty-eight".