3257340 has 36 divisors (see below), whose sum is σ = 9159864. Its totient is φ = 864896.

The previous prime is 3257299. The next prime is 3257347. The reversal of 3257340 is 437523.

It is a super-2 number, since 2×3257340² = 21220527751200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3257340.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3257347) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13864 + ... + 14096.

Almost surely, 2^3257340 is an apocalyptic number.

3257340 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3257340 is an abundant number, since it is smaller than the sum of its proper divisors (5902524).

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

3257340 is a wasteful number, since it uses less digits than its factorization.

3257340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478 (or 243 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 24.

The square root of 3257340 is about 1804.8102393327. The cubic root of 3257340 is about 148.2362309680.

The spelling of 3257340 in words is "three million, two hundred fifty-seven thousand, three hundred forty".