3257343140 has 24 divisors (see below), whose sum is σ = 7242799032. Its totient is φ = 1226293760.

The previous prime is 3257343139. The next prime is 3257343149. The reversal of 3257343140 is 413437523.

It can be written as a sum of positive squares in 4 ways, for example, as 1025536576 + 2231806564 = 32024^2 + 47242^2 .

It is a super-2 number, since 2×3257343140² = 21220568663410119200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3257343097 and 3257343106.

It is not an unprimeable number, because it can be changed into a prime (3257343149) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4789871 + ... + 4790550.

It is an arithmetic number, because the mean of its divisors is an integer number (301783293).

Almost surely, 2^3257343140 is an apocalyptic number.

It is an amenable number.

3257343140 is an abundant number, since it is smaller than the sum of its proper divisors (3985455892).

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

3257343140 is a wasteful number, since it uses less digits than its factorization.

3257343140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9580447 (or 9580445 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 32.

The square root of 3257343140 is about 57073.1385154172. The cubic root of 3257343140 is about 1482.3627860003.

The spelling of 3257343140 in words is "three billion, two hundred fifty-seven million, three hundred forty-three thousand, one hundred forty".