2391132960 has 240 divisors, whose sum is σ = 8935924536. Its totient is φ = 600072192.

The previous prime is 2391132937. The next prime is 2391132967. The reversal of 2391132960 is 692311932.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2186871696 + 204261264 = 46764^2 + 14292^2 .

It is a tau number, because it is divible by the number of its divisors (240).

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

It is not an unprimeable number, because it can be changed into a prime (2391132967) by changing a digit.

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 39 ways as a sum of consecutive naturals, for example, 214894 + ... + 225746.

Almost surely, 2^2391132960 is an apocalyptic number.

2391132960 is a gapful number since it is divisible by the number (20) 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 2391132960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4467962268).

2391132960 is an abundant number, since it is smaller than the sum of its proper divisors (6544791576).

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

2391132960 is a wasteful number, since it uses less digits than its factorization.

2391132960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10897 (or 10880 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 2391132960 is about 48899.2122635938. The cubic root of 2391132960 is about 1337.2150073776.

The spelling of 2391132960 in words is "two billion, three hundred ninety-one million, one hundred thirty-two thousand, nine hundred sixty".