1294867449 has 6 divisors (see below), whose sum is σ = 1870364106. Its totient is φ = 863244960.

The previous prime is 1294867439. The next prime is 1294867451. The reversal of 1294867449 is 9447684921.

It can be written as a sum of positive squares in only one way, i.e., 878707449 + 416160000 = 29643^2 + 20400^2 .

It is not a de Polignac number, because 1294867449 - 2²⁹ = 757996537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1294867395 and 1294867404.

It is not an unprimeable number, because it can be changed into a prime (1294867439) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 71937072 + ... + 71937089.

It is an arithmetic number, because the mean of its divisors is an integer number (311727351).

Almost surely, 2^1294867449 is an apocalyptic number.

It is an amenable number.

1294867449 is a deficient number, since it is larger than the sum of its proper divisors (575496657).

1294867449 is a wasteful number, since it uses less digits than its factorization.

1294867449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143874167 (or 143874164 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The square root of 1294867449 is about 35984.2666869842. The cubic root of 1294867449 is about 1089.9546733670.

The spelling of 1294867449 in words is "one billion, two hundred ninety-four million, eight hundred sixty-seven thousand, four hundred forty-nine".