3440289 has 4 divisors (see below), whose sum is σ = 4587056. Its totient is φ = 2293524.

The previous prime is 3440263. The next prime is 3440291. The reversal of 3440289 is 9820443.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 3440289 - 2¹³ = 3432097 is a prime.

It is a D-number.

It is a Duffinian number.

3440289 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3440209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 573379 + ... + 573384.

It is an arithmetic number, because the mean of its divisors is an integer number (1146764).

Almost surely, 2^3440289 is an apocalyptic number.

It is an amenable number.

3440289 is a deficient number, since it is larger than the sum of its proper divisors (1146767).

3440289 is a wasteful number, since it uses less digits than its factorization.

3440289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1146766.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 3440289 is about 1854.8016066415. The cubic root of 3440289 is about 150.9610735442.

The spelling of 3440289 in words is "three million, four hundred forty thousand, two hundred eighty-nine".