1225344404 has 12 divisors (see below), whose sum is σ = 2145025428. Its totient is φ = 612480000.

The previous prime is 1225344403. The next prime is 1225344413. The reversal of 1225344404 is 4044435221.

It can be written as a sum of positive squares in 2 ways, for example, as 592922500 + 632421904 = 24350^2 + 25148^2 .

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225344401) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 33197 + ... + 59604.

It is an arithmetic number, because the mean of its divisors is an integer number (178752119).

Almost surely, 2^1225344404 is an apocalyptic number.

It is an amenable number.

1225344404 is a deficient number, since it is larger than the sum of its proper divisors (919681024).

1225344404 is a wasteful number, since it uses less digits than its factorization.

1225344404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96106 (or 96104 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 29.

The square root of 1225344404 is about 35004.9197113777. The cubic root of 1225344404 is about 1070.0877454464.

Adding to 1225344404 its reverse (4044435221), we get a palindrome (5269779625).

The spelling of 1225344404 in words is "one billion, two hundred twenty-five million, three hundred forty-four thousand, four hundred four".