65944042 has 4 divisors (see below), whose sum is σ = 98916066. Its totient is φ = 32972020.

The previous prime is 65944033. The next prime is 65944051. The reversal of 65944042 is 24044956.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (65944033) and next prime (65944051).

It can be written as a sum of positive squares in only one way, i.e., 36252441 + 29691601 = 6021^2 + 5449^2 .

It is a junction number, because it is equal to n+sod(n) for n = 65943989 and 65944007.

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 as a sum of consecutive naturals, namely, 16486009 + ... + 16486012.

Almost surely, 2^65944042 is an apocalyptic number.

65944042 is a deficient number, since it is larger than the sum of its proper divisors (32972024).

65944042 is a wasteful number, since it uses less digits than its factorization.

65944042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32972023.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 65944042 is about 8120.5936975076. The cubic root of 65944042 is about 404.0097577946.

Adding to 65944042 its reverse (24044956), we get a palindrome (89988998).

The spelling of 65944042 in words is "sixty-five million, nine hundred forty-four thousand, forty-two".