65444404 has 6 divisors (see below), whose sum is σ = 114527714. Its totient is φ = 32722200.

The previous prime is 65444383. The next prime is 65444411. The reversal of 65444404 is 40444456.

It can be written as a sum of positive squares in only one way, i.e., 60372900 + 5071504 = 7770^2 + 2252^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8180547 + ... + 8180554.

Almost surely, 2^65444404 is an apocalyptic number.

It is an amenable number.

65444404 is a deficient number, since it is larger than the sum of its proper divisors (49083310).

65444404 is a wasteful number, since it uses less digits than its factorization.

65444404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16361105 (or 16361103 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 31.

The square root of 65444404 is about 8089.7715666142. The cubic root of 65444404 is about 402.9868168018.

The spelling of 65444404 in words is "sixty-five million, four hundred forty-four thousand, four hundred four".