965444220 has 288 divisors, whose sum is σ = 3351741120. Its totient is φ = 223211520.

The previous prime is 965444209. The next prime is 965444231. The reversal of 965444220 is 22444569.

965444220 is a `hidden beast` number, since 96 + 544 + 4 + 2 + 20 = 666.

965444220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (965444209) and next prime (965444231).

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

It is a nialpdrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2782087 + ... + 2782433.

It is an arithmetic number, because the mean of its divisors is an integer number (11637990).

Almost surely, 2^965444220 is an apocalyptic number.

965444220 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 965444220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1675870560).

965444220 is an abundant number, since it is smaller than the sum of its proper divisors (2386296900).

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

965444220 is a wasteful number, since it uses less digits than its factorization.

965444220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445 (or 440 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 965444220 is about 31071.5982852508. The cubic root of 965444220 is about 988.3461213617.

Adding to 965444220 its reverse (22444569), we get a palindrome (987888789).

The spelling of 965444220 in words is "nine hundred sixty-five million, four hundred forty-four thousand, two hundred twenty".