64436542 has 8 divisors (see below), whose sum is σ = 97393032. Its totient is φ = 31972200.

The previous prime is 64436539. The next prime is 64436609. The reversal of 64436542 is 24563446.

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 = 64436498 and 64436507.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 122709 + ... + 123232.

It is an arithmetic number, because the mean of its divisors is an integer number (12174129).

Almost surely, 2^64436542 is an apocalyptic number.

64436542 is a deficient number, since it is larger than the sum of its proper divisors (32956490).

64436542 is a wasteful number, since it uses less digits than its factorization.

64436542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246074.

The product of its digits is 69120, while the sum is 34.

The square root of 64436542 is about 8027.2375073870. The cubic root of 64436542 is about 400.9074024952.

Adding to 64436542 its reverse (24563446), we get a palindrome (88999988).

The spelling of 64436542 in words is "sixty-four million, four hundred thirty-six thousand, five hundred forty-two".