3489649920 has 108 divisors (see below), whose sum is σ = 12073865076. Its totient is φ = 930570240.

The previous prime is 3489649913. The next prime is 3489649973. The reversal of 3489649920 is 299469843.

3489649920 is a `hidden beast` number, since 3 + 48 + 96 + 499 + 20 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2066247936 + 1423401984 = 45456^2 + 37728^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 139941 + ... + 162980.

It is an arithmetic number, because the mean of its divisors is an integer number (111795047).

Almost surely, 2^3489649920 is an apocalyptic number.

3489649920 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3489649920 is an abundant number, since it is smaller than the sum of its proper divisors (8584215156).

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

3489649920 is a wasteful number, since it uses less digits than its factorization.

3489649920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302948 (or 302931 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 54.

The square root of 3489649920 is about 59073.2589248299. The cubic root of 3489649920 is about 1516.7963921294.

The spelling of 3489649920 in words is "three billion, four hundred eighty-nine million, six hundred forty-nine thousand, nine hundred twenty".