3257343520 has 48 divisors (see below), whose sum is σ = 7699829760. Its totient is φ = 1302200064.

The previous prime is 3257343511. The next prime is 3257343521. The reversal of 3257343520 is 253437523.

It is a super-2 number, since 2×3257343520² = 21220573614571980800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3257343521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 343969 + ... + 353311.

It is an arithmetic number, because the mean of its divisors is an integer number (160413120).

Almost surely, 2^3257343520 is an apocalyptic number.

It is an amenable number.

3257343520 is an abundant number, since it is smaller than the sum of its proper divisors (4442486240).

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

3257343520 is a wasteful number, since it uses less digits than its factorization.

3257343520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11537 (or 11529 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 34.

The square root of 3257343520 is about 57073.1418444788. The cubic root of 3257343520 is about 1482.3628436442.

The spelling of 3257343520 in words is "three billion, two hundred fifty-seven million, three hundred forty-three thousand, five hundred twenty".