64126444 has 24 divisors (see below), whose sum is σ = 119226800. Its totient is φ = 30093120.

The previous prime is 64126441. The next prime is 64126457. The reversal of 64126444 is 44462146.

It is a super-2 number, since 2×64126444² = 8224401640170272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64126441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4414 + ... + 12154.

Almost surely, 2^64126444 is an apocalyptic number.

It is an amenable number.

64126444 is a deficient number, since it is larger than the sum of its proper divisors (55100356).

64126444 is a wasteful number, since it uses less digits than its factorization.

64126444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7873 (or 7871 counting only the distinct ones).

The product of its digits is 18432, while the sum is 31.

The square root of 64126444 is about 8007.8988505100. The cubic root of 64126444 is about 400.2632517083.

The spelling of 64126444 in words is "sixty-four million, one hundred twenty-six thousand, four hundred forty-four".