3440739 has 8 divisors (see below), whose sum is σ = 4596480. Its totient is φ = 2289416.

The previous prime is 3440719. The next prime is 3440771. The reversal of 3440739 is 9370443.

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

It is a cyclic number.

It is not a de Polignac number, because 3440739 - 2¹¹ = 3438691 is a prime.

It is a super-2 number, since 2×3440739² = 23677369732242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3440719) 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, 1834 + ... + 3200.

It is an arithmetic number, because the mean of its divisors is an integer number (574560).

Almost surely, 2^3440739 is an apocalyptic number.

3440739 is a deficient number, since it is larger than the sum of its proper divisors (1155741).

3440739 is a wasteful number, since it uses less digits than its factorization.

3440739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2209.

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 3440739 is about 1854.9229094493. The cubic root of 3440739 is about 150.9676553092.

The spelling of 3440739 in words is "three million, four hundred forty thousand, seven hundred thirty-nine".