1238807949 has 8 divisors (see below), whose sum is σ = 1652001120. Its totient is φ = 825743376.

The previous prime is 1238807917. The next prime is 1238807971. The reversal of 1238807949 is 9497088321.

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

It is not a de Polignac number, because 1238807949 - 2⁵ = 1238807917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1238807909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6819 + ... + 50240.

It is an arithmetic number, because the mean of its divisors is an integer number (206500140).

Almost surely, 2^1238807949 is an apocalyptic number.

It is an amenable number.

1238807949 is a deficient number, since it is larger than the sum of its proper divisors (413193171).

1238807949 is an equidigital number, since it uses as much as digits as its factorization.

1238807949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64299.

The product of its (nonzero) digits is 870912, while the sum is 51.

The square root of 1238807949 is about 35196.7036666788. The cubic root of 1238807949 is about 1073.9926959405.

The spelling of 1238807949 in words is "one billion, two hundred thirty-eight million, eight hundred seven thousand, nine hundred forty-nine".