1238448423 has 8 divisors (see below), whose sum is σ = 1695893488. Its totient is φ = 803317824.

The previous prime is 1238448391. The next prime is 1238448437. The reversal of 1238448423 is 3248448321.

It is a happy number.

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

It is not a de Polignac number, because 1238448423 - 2⁵ = 1238448391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1238448493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5578486 + ... + 5578707.

It is an arithmetic number, because the mean of its divisors is an integer number (211986686).

Almost surely, 2^1238448423 is an apocalyptic number.

1238448423 is a deficient number, since it is larger than the sum of its proper divisors (457445065).

1238448423 is a wasteful number, since it uses less digits than its factorization.

1238448423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11157233.

The product of its digits is 147456, while the sum is 39.

The square root of 1238448423 is about 35191.5959143657. The cubic root of 1238448423 is about 1073.8887880781. Note that the first 3 decimals are identical.

The spelling of 1238448423 in words is "one billion, two hundred thirty-eight million, four hundred forty-eight thousand, four hundred twenty-three".