65845242 has 24 divisors (see below), whose sum is σ = 143020020. Its totient is φ = 21893760.

The previous prime is 65845223. The next prime is 65845243. The reversal of 65845242 is 24254856.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 64786401 + 1058841 = 8049^2 + 1029^2 .

It is a junction number, because it is equal to n+sod(n) for n = 65845197 and 65845206.

It is not an unprimeable number, because it can be changed into a prime (65845243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3234 + ... + 11922.

Almost surely, 2^65845242 is an apocalyptic number.

65845242 is an abundant number, since it is smaller than the sum of its proper divisors (77174778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65845242 is a wasteful number, since it uses less digits than its factorization.

65845242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9118 (or 9115 counting only the distinct ones).

The product of its digits is 76800, while the sum is 36.

The square root of 65845242 is about 8114.5081181794. The cubic root of 65845242 is about 403.8078890883.

The spelling of 65845242 in words is "sixty-five million, eight hundred forty-five thousand, two hundred forty-two".