65378044 has 24 divisors (see below), whose sum is σ = 117473328. Its totient is φ = 31824000.

The previous prime is 65378041. The next prime is 65378057. The reversal of 65378044 is 44087356.

It is a super-3 number, since 3×65378044³ (a number of 24 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 65377994 and 65378012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65378041) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 27919 + ... + 30169.

It is an arithmetic number, because the mean of its divisors is an integer number (4894722).

Almost surely, 2^65378044 is an apocalyptic number.

It is an amenable number.

65378044 is a deficient number, since it is larger than the sum of its proper divisors (52095284).

65378044 is a wasteful number, since it uses less digits than its factorization.

65378044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2445 (or 2443 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 65378044 is about 8085.6690508578. The cubic root of 65378044 is about 402.8505624780.

The spelling of 65378044 in words is "sixty-five million, three hundred seventy-eight thousand, forty-four".