1293838349 has 4 divisors (see below), whose sum is σ = 1311562236. Its totient is φ = 1276114464.

The previous prime is 1293838333. The next prime is 1293838369. The reversal of 1293838349 is 9438383921.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1101045124 + 192793225 = 33182^2 + 13885^2 .

It is a cyclic number.

It is not a de Polignac number, because 1293838349 - 2⁴ = 1293838333 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1293838297 and 1293838306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1293838369) 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, 8861834 + ... + 8861979.

It is an arithmetic number, because the mean of its divisors is an integer number (327890559).

Almost surely, 2^1293838349 is an apocalyptic number.

It is an amenable number.

1293838349 is a deficient number, since it is larger than the sum of its proper divisors (17723887).

1293838349 is an equidigital number, since it uses as much as digits as its factorization.

1293838349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17723886.

The product of its digits is 1119744, while the sum is 50.

The square root of 1293838349 is about 35969.9645398769. The cubic root of 1293838349 is about 1089.6658485308.

The spelling of 1293838349 in words is "one billion, two hundred ninety-three million, eight hundred thirty-eight thousand, three hundred forty-nine".