65090844 has 192 divisors, whose sum is σ = 214502400. Its totient is φ = 16609536.

The previous prime is 65090833. The next prime is 65090867. The reversal of 65090844 is 44809056.

65090844 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 65090799 and 65090808.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 363547 + ... + 363725.

It is an arithmetic number, because the mean of its divisors is an integer number (1117200).

Almost surely, 2^65090844 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65090844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107251200).

65090844 is an abundant number, since it is smaller than the sum of its proper divisors (149411556).

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

65090844 is a wasteful number, since it uses less digits than its factorization.

65090844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249 (or 241 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 65090844 is about 8067.8896869008. The cubic root of 65090844 is about 402.2598008748.

The spelling of 65090844 in words is "sixty-five million, ninety thousand, eight hundred forty-four".