1225324040 has 32 divisors (see below), whose sum is σ = 2769039000. Its totient is φ = 487985664.

The previous prime is 1225324039. The next prime is 1225324151. The reversal of 1225324040 is 404235221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1221782116 + 3541924 = 34954^2 + 1882^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1225323997 and 1225324015.

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, 57725 + ... + 76044.

Almost surely, 2^1225324040 is an apocalyptic number.

1225324040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1225324040 is an abundant number, since it is smaller than the sum of its proper divisors (1543714960).

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

1225324040 is a wasteful number, since it uses less digits than its factorization.

1225324040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134009 (or 134005 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 1225324040 is about 35004.6288367696. The cubic root of 1225324040 is about 1070.0818174837.

Adding to 1225324040 its reverse (404235221), we get a palindrome (1629559261).

The spelling of 1225324040 in words is "one billion, two hundred twenty-five million, three hundred twenty-four thousand, forty".