3440247 has 8 divisors (see below), whose sum is σ = 4596720. Its totient is φ = 2288640.

The previous prime is 3440243. The next prime is 3440263. The reversal of 3440247 is 7420443.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3440247 - 2² = 3440243 is a prime.

3440247 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3440243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1029 + ... + 2817.

It is an arithmetic number, because the mean of its divisors is an integer number (574590).

Almost surely, 2^3440247 is an apocalyptic number.

3440247 is a deficient number, since it is larger than the sum of its proper divisors (1156473).

3440247 is a wasteful number, since it uses less digits than its factorization.

3440247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2433.

The product of its (nonzero) digits is 2688, while the sum is 24.

The square root of 3440247 is about 1854.7902846414. The cubic root of 3440247 is about 150.9604592168.

The spelling of 3440247 in words is "three million, four hundred forty thousand, two hundred forty-seven".