3440663644 has 12 divisors (see below), whose sum is σ = 6568539768. Its totient is φ = 1563938000.

The previous prime is 3440663627. The next prime is 3440663651. The reversal of 3440663644 is 4463660443.

It is a happy number.

It is a super-2 number, since 2×3440663644² = 23676332622286717472, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3440663597 and 3440663606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39098407 + ... + 39098494.

It is an arithmetic number, because the mean of its divisors is an integer number (547378314).

Almost surely, 2^3440663644 is an apocalyptic number.

It is an amenable number.

3440663644 is a deficient number, since it is larger than the sum of its proper divisors (3127876124).

3440663644 is a wasteful number, since it uses less digits than its factorization.

3440663644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78196916 (or 78196914 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 40.

The square root of 3440663644 is about 58657.1704397681. The cubic root of 3440663644 is about 1509.6655318145.

The spelling of 3440663644 in words is "three billion, four hundred forty million, six hundred sixty-three thousand, six hundred forty-four".