1225350444 has 24 divisors (see below), whose sum is σ = 2865420208. Its totient is φ = 407554560.

The previous prime is 1225350433. The next prime is 1225350481. The reversal of 1225350444 is 4440535221.

It is a super-2 number, since 2×1225350444² = 3002967421221994272, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106237 + ... + 117204.

Almost surely, 2^1225350444 is an apocalyptic number.

It is an amenable number.

1225350444 is an abundant number, since it is smaller than the sum of its proper divisors (1640069764).

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

1225350444 is a wasteful number, since it uses less digits than its factorization.

1225350444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223905 (or 223903 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 1225350444 is about 35005.0059848588. The cubic root of 1225350444 is about 1070.0895036784.

Adding to 1225350444 its reverse (4440535221), we get a palindrome (5665885665).

The spelling of 1225350444 in words is "one billion, two hundred twenty-five million, three hundred fifty thousand, four hundred forty-four".