1494488909 has 8 divisors (see below), whose sum is σ = 1611516480. Its totient is φ = 1381298400.

The previous prime is 1494488861. The next prime is 1494488911. The reversal of 1494488909 is 9098844941.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1494488909 - 2¹⁶ = 1494423373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1494488969) 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, 958457 + ... + 960014.

It is an arithmetic number, because the mean of its divisors is an integer number (201439560).

Almost surely, 2^1494488909 is an apocalyptic number.

1494488909 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1494488909 is a deficient number, since it is larger than the sum of its proper divisors (117027571).

1494488909 is a wasteful number, since it uses less digits than its factorization.

1494488909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1918531.

The product of its (nonzero) digits is 2985984, while the sum is 56.

The square root of 1494488909 is about 38658.6201124665. The cubic root of 1494488909 is about 1143.3106056071.

The spelling of 1494488909 in words is "one billion, four hundred ninety-four million, four hundred eighty-eight thousand, nine hundred nine".