965209380 has 96 divisors (see below), whose sum is σ = 2790982656. Its totient is φ = 249048576.

The previous prime is 965209369. The next prime is 965209381. The reversal of 965209380 is 83902569.

It is not an unprimeable number, because it can be changed into a prime (965209381) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 436237 + ... + 438443.

It is an arithmetic number, because the mean of its divisors is an integer number (29072736).

Almost surely, 2^965209380 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 965209380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1395491328).

965209380 is an abundant number, since it is smaller than the sum of its proper divisors (1825773276).

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

965209380 is a wasteful number, since it uses less digits than its factorization.

965209380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2453 (or 2451 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 965209380 is about 31067.8190415742. The cubic root of 965209380 is about 988.2659779347.

The spelling of 965209380 in words is "nine hundred sixty-five million, two hundred nine thousand, three hundred eighty".