1238241998 has 8 divisors (see below), whose sum is σ = 2122700592. Its totient is φ = 530675136.

The previous prime is 1238241997. The next prime is 1238242003. The reversal of 1238241998 is 8991428321.

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

It is a super-2 number, since 2×1238241998² = 3066486491222064008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1238241997) 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, 44222915 + ... + 44222942.

It is an arithmetic number, because the mean of its divisors is an integer number (265337574).

Almost surely, 2^1238241998 is an apocalyptic number.

1238241998 is a deficient number, since it is larger than the sum of its proper divisors (884458594).

1238241998 is an equidigital number, since it uses as much as digits as its factorization.

1238241998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88445866.

The product of its digits is 248832, while the sum is 47.

The square root of 1238241998 is about 35188.6629186163. The cubic root of 1238241998 is about 1073.8291193812.

The spelling of 1238241998 in words is "one billion, two hundred thirty-eight million, two hundred forty-one thousand, nine hundred ninety-eight".