65244444 has 12 divisors (see below), whose sum is σ = 152237064. Its totient is φ = 21748144.

The previous prime is 65244409. The next prime is 65244451. The reversal of 65244444 is 44444256.

It is a tau number, because it is divible by the number of its divisors (12).

65244444 is a modest number, since divided by 44444 gives 652 as remainder.

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, 2718507 + ... + 2718530.

It is an arithmetic number, because the mean of its divisors is an integer number (12686422).

Almost surely, 2^65244444 is an apocalyptic number.

It is an amenable number.

65244444 is an abundant number, since it is smaller than the sum of its proper divisors (86992620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65244444 is a wasteful number, since it uses less digits than its factorization.

65244444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5437044 (or 5437042 counting only the distinct ones).

The product of its digits is 61440, while the sum is 33.

The square root of 65244444 is about 8077.4032956143. The cubic root of 65244444 is about 402.5759670406.

The spelling of 65244444 in words is "sixty-five million, two hundred forty-four thousand, four hundred forty-four".