1244300420 has 24 divisors (see below), whose sum is σ = 2850579648. Its totient is φ = 452472800.

The previous prime is 1244300411. The next prime is 1244300423. The reversal of 1244300420 is 240034421.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1244300392 and 1244300401.

It is not an unprimeable number, because it can be changed into a prime (1244300423) 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, 2827736 + ... + 2828175.

It is an arithmetic number, because the mean of its divisors is an integer number (118774152).

Almost surely, 2^1244300420 is an apocalyptic number.

1244300420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1244300420 is an abundant number, since it is smaller than the sum of its proper divisors (1606279228).

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

1244300420 is a wasteful number, since it uses less digits than its factorization.

1244300420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5655931 (or 5655929 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 1244300420 is about 35274.6427338393. The cubic root of 1244300420 is about 1075.5776005409.

Adding to 1244300420 its reverse (240034421), we get a palindrome (1484334841).

The spelling of 1244300420 in words is "one billion, two hundred forty-four million, three hundred thousand, four hundred twenty".