64246442 has 8 divisors (see below), whose sum is σ = 103782756. Its totient is φ = 29652192.

The previous prime is 64246439. The next prime is 64246447. The reversal of 64246442 is 24464246.

64246442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 58997761 + 5248681 = 7681^2 + 2291^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 64246399 and 64246408.

It is not an unprimeable number, because it can be changed into a prime (64246447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1235483 + ... + 1235534.

Almost surely, 2^64246442 is an apocalyptic number.

64246442 is a deficient number, since it is larger than the sum of its proper divisors (39536314).

64246442 is a wasteful number, since it uses less digits than its factorization.

64246442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2471032.

The product of its digits is 36864, while the sum is 32.

The square root of 64246442 is about 8015.3878259258. The cubic root of 64246442 is about 400.5127632371.

The spelling of 64246442 in words is "sixty-four million, two hundred forty-six thousand, four hundred forty-two".