1225041444 has 36 divisors (see below), whose sum is σ = 3378145680. Its totient is φ = 371224560.

The previous prime is 1225041443. The next prime is 1225041449. The reversal of 1225041444 is 4441405221.

1225041444 is a `hidden beast` number, since 12 + 2 + 504 + 144 + 4 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (1225041443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1546374 + ... + 1547165.

It is an arithmetic number, because the mean of its divisors is an integer number (93837380).

Almost surely, 2^1225041444 is an apocalyptic number.

It is an amenable number.

1225041444 is an abundant number, since it is smaller than the sum of its proper divisors (2153104236).

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

1225041444 is a wasteful number, since it uses less digits than its factorization.

1225041444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3093560 (or 3093555 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 1225041444 is about 35000.5920521353. The cubic root of 1225041444 is about 1069.9995469763. Note that the first 3 decimals are identical.

Adding to 1225041444 its reverse (4441405221), we get a palindrome (5666446665).

The spelling of 1225041444 in words is "one billion, two hundred twenty-five million, forty-one thousand, four hundred forty-four".