1491082752 has 80 divisors (see below), whose sum is σ = 4069395792. Its totient is φ = 484884480.

The previous prime is 1491082687. The next prime is 1491082757. The reversal of 1491082752 is 2572801941.

It is a self number, because there is not a number n which added to its sum of digits gives 1491082752.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1491082757) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51138 + ... + 74814.

Almost surely, 2^1491082752 is an apocalyptic number.

1491082752 is a gapful number since it is divisible by the number (12) 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 1491082752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2034697896).

1491082752 is an abundant number, since it is smaller than the sum of its proper divisors (2578313040).

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

1491082752 is an equidigital number, since it uses as much as digits as its factorization.

1491082752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23739 (or 23723 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 1491082752 is about 38614.5406809404. The cubic root of 1491082752 is about 1142.4413546533.

The spelling of 1491082752 in words is "one billion, four hundred ninety-one million, eighty-two thousand, seven hundred fifty-two".