65244378 has 16 divisors (see below), whose sum is σ = 132951456. Its totient is φ = 21337680.

The previous prime is 65244359. The next prime is 65244397. The reversal of 65244378 is 87344256.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (65244359) and next prime (65244397).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102268 + ... + 102903.

It is an arithmetic number, because the mean of its divisors is an integer number (8309466).

Almost surely, 2^65244378 is an apocalyptic number.

65244378 is an abundant number, since it is smaller than the sum of its proper divisors (67707078).

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

65244378 is a wasteful number, since it uses less digits than its factorization.

65244378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205229.

The product of its digits is 161280, while the sum is 39.

The square root of 65244378 is about 8077.3992101418. The cubic root of 65244378 is about 402.5758312945.

The spelling of 65244378 in words is "sixty-five million, two hundred forty-four thousand, three hundred seventy-eight".