64280043 has 24 divisors (see below), whose sum is σ = 100178208. Its totient is φ = 39566592.

The previous prime is 64280023. The next prime is 64280089. The reversal of 64280043 is 34008246.

It is not a de Polignac number, because 64280043 - 2¹⁴ = 64263659 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64279989 and 64280016.

It is not an unprimeable number, because it can be changed into a prime (64280023) 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 23 ways as a sum of consecutive naturals, for example, 4146 + ... + 12072.

It is an arithmetic number, because the mean of its divisors is an integer number (4174092).

Almost surely, 2^64280043 is an apocalyptic number.

64280043 is a deficient number, since it is larger than the sum of its proper divisors (35898165).

64280043 is a wasteful number, since it uses less digits than its factorization.

64280043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8003 (or 8000 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 64280043 is about 8017.4835827708. The cubic root of 64280043 is about 400.5825740235.

Adding to 64280043 its reverse (34008246), we get a palindrome (98288289).

The spelling of 64280043 in words is "sixty-four million, two hundred eighty thousand, forty-three".