44640016 has 10 divisors (see below), whose sum is σ = 86490062. Its totient is φ = 22320000.

The previous prime is 44639993. The next prime is 44640047. The reversal of 44640016 is 61004644.

It can be written as a sum of positive squares in only one way, i.e., 38489616 + 6150400 = 6204^2 + 2480^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1394985 + ... + 1395016.

Almost surely, 2^44640016 is an apocalyptic number.

It is an amenable number.

44640016 is a deficient number, since it is larger than the sum of its proper divisors (41850046).

44640016 is a wasteful number, since it uses less digits than its factorization.

44640016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2790009 (or 2790003 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 44640016 is about 6681.3184327646. The cubic root of 44640016 is about 354.7383273017.

The spelling of 44640016 in words is "forty-four million, six hundred forty thousand, sixteen".