44020664 has 8 divisors (see below), whose sum is σ = 82538760. Its totient is φ = 22010328.

The previous prime is 44020661. The next prime is 44020681. The reversal of 44020664 is 46602044.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44020661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2751284 + ... + 2751299.

It is an arithmetic number, because the mean of its divisors is an integer number (10317345).

Almost surely, 2^44020664 is an apocalyptic number.

It is an amenable number.

44020664 is a deficient number, since it is larger than the sum of its proper divisors (38518096).

44020664 is a wasteful number, since it uses less digits than its factorization.

44020664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5502589 (or 5502585 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 44020664 is about 6634.8070054825. The cubic root of 44020664 is about 353.0900908817.

The spelling of 44020664 in words is "forty-four million, twenty thousand, six hundred sixty-four".