1244948220 has 216 divisors, whose sum is σ = 4022299008. Its totient is φ = 311328000.

The previous prime is 1244948219. The next prime is 1244948249. The reversal of 1244948220 is 228494421.

1244948220 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 12326170 + ... + 12326270.

Almost surely, 2^1244948220 is an apocalyptic number.

1244948220 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 1244948220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2011149504).

1244948220 is an abundant number, since it is smaller than the sum of its proper divisors (2777350788).

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

1244948220 is a wasteful number, since it uses less digits than its factorization.

1244948220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241 (or 189 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 1244948220 is about 35283.8237723748. The cubic root of 1244948220 is about 1075.7642216813.

The spelling of 1244948220 in words is "one billion, two hundred forty-four million, nine hundred forty-eight thousand, two hundred twenty".