3440645 has 16 divisors (see below), whose sum is σ = 4553472. Its totient is φ = 2479680.

The previous prime is 3440627. The next prime is 3440663. The reversal of 3440645 is 5460443.

It is an interprime number because it is at equal distance from previous prime (3440627) and next prime (3440663).

It is not a de Polignac number, because 3440645 - 2⁶ = 3440581 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2180 + ... + 3410.

It is an arithmetic number, because the mean of its divisors is an integer number (284592).

Almost surely, 2^3440645 is an apocalyptic number.

It is an amenable number.

3440645 is a deficient number, since it is larger than the sum of its proper divisors (1112827).

3440645 is a wasteful number, since it uses less digits than its factorization.

3440645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1292.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 3440645 is about 1854.8975712961. The cubic root of 3440645 is about 150.9662804990.

The spelling of 3440645 in words is "three million, four hundred forty thousand, six hundred forty-five".