64441044 has 18 divisors (see below), whose sum is σ = 162892730. Its totient is φ = 21480336.

The previous prime is 64441031. The next prime is 64441051. The reversal of 64441044 is 44014446.

64441044 is a `hidden beast` number, since 644 + 4 + 10 + 4 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 56250000 + 8191044 = 7500^2 + 2862^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 64440999 and 64441017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 894979 + ... + 895050.

Almost surely, 2^64441044 is an apocalyptic number.

It is an amenable number.

64441044 is an abundant number, since it is smaller than the sum of its proper divisors (98451686).

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

64441044 is a wasteful number, since it uses less digits than its factorization.

64441044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1790039 (or 1790034 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

The square root of 64441044 is about 8027.5179227455. The cubic root of 64441044 is about 400.9167390354.

The spelling of 64441044 in words is "sixty-four million, four hundred forty-one thousand, forty-four".