1244338120 has 192 divisors, whose sum is σ = 3236701680. Its totient is φ = 428654592.

The previous prime is 1244338099. The next prime is 1244338129. The reversal of 1244338120 is 218334421.

It can be written as a sum of positive squares in 8 ways, for example, as 1021313764 + 223024356 = 31958^2 + 14934^2 .

It is not an unprimeable number, because it can be changed into a prime (1244338129) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9082692 + ... + 9082828.

Almost surely, 2^1244338120 is an apocalyptic number.

1244338120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1244338120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1618350840).

1244338120 is an abundant number, since it is smaller than the sum of its proper divisors (1992363560).

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

1244338120 is a wasteful number, since it uses less digits than its factorization.

1244338120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240 (or 217 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 1244338120 is about 35275.1771079891. The cubic root of 1244338120 is about 1075.5884631014.

The spelling of 1244338120 in words is "one billion, two hundred forty-four million, three hundred thirty-eight thousand, one hundred twenty".