3440581 has 2 divisors, whose sum is σ = 3440582. Its totient is φ = 3440580.

The previous prime is 3440573. The next prime is 3440603. The reversal of 3440581 is 1850443.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3272481 + 168100 = 1809^2 + 410^2 .

It is a cyclic number.

It is not a de Polignac number, because 3440581 - 2³ = 3440573 is a prime.

It is a super-2 number, since 2×3440581² = 23675195235122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3440551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1720290 + 1720291.

It is an arithmetic number, because the mean of its divisors is an integer number (1720291).

Almost surely, 2^3440581 is an apocalyptic number.

It is an amenable number.

3440581 is a deficient number, since it is larger than the sum of its proper divisors (1).

3440581 is an equidigital number, since it uses as much as digits as its factorization.

3440581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 3440581 is about 1854.8803195894. The cubic root of 3440581 is about 150.9653444437.

The spelling of 3440581 in words is "three million, four hundred forty thousand, five hundred eighty-one".