3440629 has 4 divisors (see below), whose sum is σ = 3459820. Its totient is φ = 3421440.

The previous prime is 3440627. The next prime is 3440663. The reversal of 3440629 is 9260443.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1205604 + 2235025 = 1098^2 + 1495^2 .

It is a cyclic number.

It is not a de Polignac number, because 3440629 - 2¹ = 3440627 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3440597 and 3440606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3440621) 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, 9324 + ... + 9685.

It is an arithmetic number, because the mean of its divisors is an integer number (864955).

Almost surely, 2^3440629 is an apocalyptic number.

It is an amenable number.

3440629 is a deficient number, since it is larger than the sum of its proper divisors (19191).

3440629 is a wasteful number, since it uses less digits than its factorization.

3440629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19190.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 3440629 is about 1854.8932583844. The cubic root of 3440629 is about 150.9660464863.

The spelling of 3440629 in words is "three million, four hundred forty thousand, six hundred twenty-nine".