1244030220 has 36 divisors (see below), whose sum is σ = 3773558880. Its totient is φ = 331741344.

The previous prime is 1244030209. The next prime is 1244030237. The reversal of 1244030220 is 220304421.

1244030220 is a `hidden beast` number, since 1 + 2 + 440 + 3 + 0 + 220 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1244030220² = 3095222376546496800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1244030193 and 1244030202.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3455460 + ... + 3455819.

It is an arithmetic number, because the mean of its divisors is an integer number (104821080).

Almost surely, 2^1244030220 is an apocalyptic number.

1244030220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1244030220 is an abundant number, since it is smaller than the sum of its proper divisors (2529528660).

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

1244030220 is a wasteful number, since it uses less digits than its factorization.

1244030220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6911294 (or 6911289 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 1244030220 is about 35270.8125792418. The cubic root of 1244030220 is about 1075.4997409657.

Adding to 1244030220 its reverse (220304421), we get a palindrome (1464334641).

The spelling of 1244030220 in words is "one billion, two hundred forty-four million, thirty thousand, two hundred twenty".