4491452940 has 192 divisors, whose sum is σ = 14643363840. Its totient is φ = 1018967040.

The previous prime is 4491452909. The next prime is 4491452941. The reversal of 4491452940 is 492541944.

It is a junction number, because it is equal to n+sod(n) for n = 4491452892 and 4491452901.

It is not an unprimeable number, because it can be changed into a prime (4491452941) 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 63 ways as a sum of consecutive naturals, for example, 544245 + ... + 552435.

It is an arithmetic number, because the mean of its divisors is an integer number (76267520).

Almost surely, 2^4491452940 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 4491452940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7321681920).

4491452940 is an abundant number, since it is smaller than the sum of its proper divisors (10151910900).

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

4491452940 is a wasteful number, since it uses less digits than its factorization.

4491452940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8272 (or 8270 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

The square root of 4491452940 is about 67018.3030223834. The cubic root of 4491452940 is about 1649.9177112313.

The spelling of 4491452940 in words is "four billion, four hundred ninety-one million, four hundred fifty-two thousand, nine hundred forty".