3340639 has 8 divisors (see below), whose sum is σ = 3482640. Its totient is φ = 3201600.

The previous prime is 3340633. The next prime is 3340657. The reversal of 3340639 is 9360433.

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 3340639 - 2⁷ = 3340511 is a prime.

It is a super-2 number, since 2×3340639² = 22319737856642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3340633) 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, 1729 + ... + 3109.

It is an arithmetic number, because the mean of its divisors is an integer number (435330).

Almost surely, 2^3340639 is an apocalyptic number.

3340639 is a deficient number, since it is larger than the sum of its proper divisors (142001).

3340639 is a wasteful number, since it uses less digits than its factorization.

3340639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1481.

The product of its (nonzero) digits is 5832, while the sum is 28.

The square root of 3340639 is about 1827.7415025107. The cubic root of 3340639 is about 149.4892107514.

The spelling of 3340639 in words is "three million, three hundred forty thousand, six hundred thirty-nine".