1141220444 has 24 divisors (see below), whose sum is σ = 2458014048. Its totient is φ = 451471680.

The previous prime is 1141220419. The next prime is 1141220471. The reversal of 1141220444 is 4440221411.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1567247 + ... + 1567974.

It is an arithmetic number, because the mean of its divisors is an integer number (102417252).

Almost surely, 2^1141220444 is an apocalyptic number.

1141220444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1141220444 is an abundant number, since it is smaller than the sum of its proper divisors (1316793604).

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

1141220444 is a wasteful number, since it uses less digits than its factorization.

1141220444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3135245 (or 3135243 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

The square root of 1141220444 is about 33781.9544135623. The cubic root of 1141220444 is about 1045.0165802487.

Adding to 1141220444 its reverse (4440221411), we get a palindrome (5581441855).

The spelling of 1141220444 in words is "one billion, one hundred forty-one million, two hundred twenty thousand, four hundred forty-four".