1491114240 has 648 divisors, whose sum is σ = 6592832064. Its totient is φ = 302284800.

The previous prime is 1491114227. The next prime is 1491114241. The reversal of 1491114240 is 424111941.

It is not an unprimeable number, because it can be changed into a prime (1491114241) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 36368620 + ... + 36368660.

Almost surely, 2^1491114240 is an apocalyptic number.

1491114240 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 1491114240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3296416032).

1491114240 is an abundant number, since it is smaller than the sum of its proper divisors (5101717824).

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

1491114240 is a wasteful number, since it uses less digits than its factorization.

1491114240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127 (or 69 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 1491114240 is about 38614.9484008460. The cubic root of 1491114240 is about 1142.4493964471.

It can be divided in two parts, 149111 and 4240, that added together give a palindrome (153351).

The spelling of 1491114240 in words is "one billion, four hundred ninety-one million, one hundred fourteen thousand, two hundred forty".