1244453898 has 8 divisors (see below), whose sum is σ = 2488907808. Its totient is φ = 414817964.

The previous prime is 1244453891. The next prime is 1244453911. The reversal of 1244453898 is 8983544421.

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

1244453898 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1244453891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103704486 + ... + 103704497.

It is an arithmetic number, because the mean of its divisors is an integer number (311113476).

Almost surely, 2^1244453898 is an apocalyptic number.

1244453898 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1244453898 is a wasteful number, since it uses less digits than its factorization.

1244453898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207408988.

The product of its digits is 1105920, while the sum is 48.

The square root of 1244453898 is about 35276.8181388288. The cubic root of 1244453898 is about 1075.6218210280.

The spelling of 1244453898 in words is "one billion, two hundred forty-four million, four hundred fifty-three thousand, eight hundred ninety-eight".