1298233238 has 4 divisors (see below), whose sum is σ = 1947349860. Its totient is φ = 649116618.

The previous prime is 1298233231. The next prime is 1298233249. The reversal of 1298233238 is 8323328921.

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

It is a junction number, because it is equal to n+sod(n) for n = 1298233195 and 1298233204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1298233231) 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 as a sum of consecutive naturals, namely, 324558308 + ... + 324558311.

It is an arithmetic number, because the mean of its divisors is an integer number (486837465).

Almost surely, 2^1298233238 is an apocalyptic number.

1298233238 is a deficient number, since it is larger than the sum of its proper divisors (649116622).

1298233238 is an equidigital number, since it uses as much as digits as its factorization.

1298233238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649116621.

The product of its digits is 124416, while the sum is 41.

The square root of 1298233238 is about 36031.0038439120. The cubic root of 1298233238 is about 1090.8982405861.

The spelling of 1298233238 in words is "one billion, two hundred ninety-eight million, two hundred thirty-three thousand, two hundred thirty-eight".