1491360000 has 360 divisors, whose sum is σ = 5363783040. Its totient is φ = 365568000.

The previous prime is 1491359983. The next prime is 1491360001. The reversal of 1491360000 is 631941.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (1491360001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 6239881 + ... + 6240119.

Almost surely, 2^1491360000 is an apocalyptic number.

1491360000 is a gapful number since it is divisible by the number (10) 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 1491360000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2681891520).

1491360000 is an abundant number, since it is smaller than the sum of its proper divisors (3872423040).

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

1491360000 is an equidigital number, since it uses as much as digits as its factorization.

1491360000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291 (or 262 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 1491360000 is about 38618.1304570794. The cubic root of 1491360000 is about 1142.5121577774.

Adding to 1491360000 its reverse (631941), we get a palindrome (1491991941).

The spelling of 1491360000 in words is "one billion, four hundred ninety-one million, three hundred sixty thousand".