1078280964 has 144 divisors (see below), whose sum is σ = 3001723200. Its totient is φ = 334651392.

The previous prime is 1078280953. The next prime is 1078280969. The reversal of 1078280964 is 4690828701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1078280969) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5586852 + ... + 5587044.

It is an arithmetic number, because the mean of its divisors is an integer number (20845300).

Almost surely, 2^1078280964 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 1078280964, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1500861600).

1078280964 is an abundant number, since it is smaller than the sum of its proper divisors (1923442236).

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

1078280964 is a wasteful number, since it uses less digits than its factorization.

1078280964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419 (or 394 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 1078280964 is about 32837.1887347258. The cubic root of 1078280964 is about 1025.4409251915.

The spelling of 1078280964 in words is "one billion, seventy-eight million, two hundred eighty thousand, nine hundred sixty-four".