65000444 has 12 divisors (see below), whose sum is σ = 119737800. Its totient is φ = 30789648.

The previous prime is 65000443. The next prime is 65000473. The reversal of 65000444 is 44400056.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65000443) 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, 427559 + ... + 427710.

It is an arithmetic number, because the mean of its divisors is an integer number (9978150).

Almost surely, 2^65000444 is an apocalyptic number.

It is an amenable number.

65000444 is a deficient number, since it is larger than the sum of its proper divisors (54737356).

65000444 is a wasteful number, since it uses less digits than its factorization.

65000444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855292 (or 855290 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 65000444 is about 8062.2852839626. The cubic root of 65000444 is about 402.0734913451.

The spelling of 65000444 in words is "sixty-five million, four hundred forty-four", and thus it is an aban number.