1493603449 has 4 divisors (see below), whose sum is σ = 1608496036. Its totient is φ = 1378710864.

The previous prime is 1493603431. The next prime is 1493603537. The reversal of 1493603449 is 9443063941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9443063941 = 709 ⋅13318849.

It can be written as a sum of positive squares in 2 ways, for example, as 802702224 + 690901225 = 28332^2 + 26285^2 .

It is a cyclic number.

It is not a de Polignac number, because 1493603449 - 2⁹ = 1493602937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1493603249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57446274 + ... + 57446299.

It is an arithmetic number, because the mean of its divisors is an integer number (402124009).

Almost surely, 2^1493603449 is an apocalyptic number.

It is an amenable number.

1493603449 is a deficient number, since it is larger than the sum of its proper divisors (114892587).

1493603449 is a wasteful number, since it uses less digits than its factorization.

1493603449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114892586.

The product of its (nonzero) digits is 279936, while the sum is 43.

The square root of 1493603449 is about 38647.1661186173. The cubic root of 1493603449 is about 1143.0847634472.

The spelling of 1493603449 in words is "one billion, four hundred ninety-three million, six hundred three thousand, four hundred forty-nine".