3440345645 has 16 divisors (see below), whose sum is σ = 4531367232. Its totient is φ = 2486712960.

The previous prime is 3440345633. The next prime is 3440345651. The reversal of 3440345645 is 5465430443.

It is not a de Polignac number, because 3440345645 - 2¹⁴ = 3440329261 is a prime.

It is a super-3 number, since 3×3440345645³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3440345599 and 3440345608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182912 + ... + 200841.

It is an arithmetic number, because the mean of its divisors is an integer number (283210452).

Almost surely, 2^3440345645 is an apocalyptic number.

It is an amenable number.

3440345645 is a deficient number, since it is larger than the sum of its proper divisors (1091021587).

3440345645 is a wasteful number, since it uses less digits than its factorization.

3440345645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383932.

The product of its (nonzero) digits is 345600, while the sum is 38.

The square root of 3440345645 is about 58654.4597196155. The cubic root of 3440345645 is about 1509.6190207370.

The spelling of 3440345645 in words is "three billion, four hundred forty million, three hundred forty-five thousand, six hundred forty-five".