3240909 has 18 divisors (see below), whose sum is σ = 5446350. Its totient is φ = 1851696.

The previous prime is 3240877. The next prime is 3240911. The reversal of 3240909 is 9090423.

It can be written as a sum of positive squares in only one way, i.e., 2965284 + 275625 = 1722^2 + 525^2 .

It is not a de Polignac number, because 3240909 - 2⁵ = 3240877 is a prime.

It is a super-2 number, since 2×3240909² = 21006982292562, which contains 22 as substring.

3240909 is a modest number, since divided by 909 gives 324 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3240959) 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 17 ways as a sum of consecutive naturals, for example, 3234 + ... + 4115.

It is an arithmetic number, because the mean of its divisors is an integer number (302575).

Almost surely, 2^3240909 is an apocalyptic number.

It is an amenable number.

3240909 is a deficient number, since it is larger than the sum of its proper divisors (2205441).

3240909 is a wasteful number, since it uses less digits than its factorization.

3240909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7369 (or 7359 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 3240909 is about 1800.2524822924. The cubic root of 3240909 is about 147.9865613559.

The spelling of 3240909 in words is "three million, two hundred forty thousand, nine hundred nine".