64444024 has 8 divisors (see below), whose sum is σ = 120832560. Its totient is φ = 32222008.

The previous prime is 64444007. The next prime is 64444031. The reversal of 64444024 is 42044446.

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

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 64443983 and 64444001.

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, 4027744 + ... + 4027759.

It is an arithmetic number, because the mean of its divisors is an integer number (15104070).

Almost surely, 2^64444024 is an apocalyptic number.

It is an amenable number.

64444024 is a deficient number, since it is larger than the sum of its proper divisors (56388536).

64444024 is a wasteful number, since it uses less digits than its factorization.

64444024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8055509 (or 8055505 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

The square root of 64444024 is about 8027.7035321442. The cubic root of 64444024 is about 400.9229189139.

The spelling of 64444024 in words is "sixty-four million, four hundred forty-four thousand, twenty-four".