1494288669 has 8 divisors (see below), whose sum is σ = 1995105952. Its totient is φ = 994831920.

The previous prime is 1494288659. The next prime is 1494288683. The reversal of 1494288669 is 9668824941.

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

It is not a de Polignac number, because 1494288669 - 2¹² = 1494284573 is a prime.

It is a super-2 number, since 2×1494288669² = 4465797252603583122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1494288659) 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, 337567 + ... + 341964.

It is an arithmetic number, because the mean of its divisors is an integer number (249388244).

Almost surely, 2^1494288669 is an apocalyptic number.

It is an amenable number.

1494288669 is a deficient number, since it is larger than the sum of its proper divisors (500817283).

1494288669 is an equidigital number, since it uses as much as digits as its factorization.

1494288669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680267.

The product of its digits is 5971968, while the sum is 57.

The square root of 1494288669 is about 38656.0301764162. The cubic root of 1494288669 is about 1143.2595409388.

The spelling of 1494288669 in words is "one billion, four hundred ninety-four million, two hundred eighty-eight thousand, six hundred sixty-nine".