1225242304 has 56 divisors (see below), whose sum is σ = 2856421008. Its totient is φ = 514083840.

The previous prime is 1225242299. The next prime is 1225242329. The reversal of 1225242304 is 4032425221.

It is a super-2 number, since 2×1225242304² = 3002437407022456832, 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, 57787 + ... + 76090.

It is an arithmetic number, because the mean of its divisors is an integer number (51007518).

Almost surely, 2^1225242304 is an apocalyptic number.

It is an amenable number.

1225242304 is an abundant number, since it is smaller than the sum of its proper divisors (1631178704).

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

1225242304 is a wasteful number, since it uses less digits than its factorization.

1225242304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133913 (or 133903 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 1225242304 is about 35003.4613145615. The cubic root of 1225242304 is about 1070.0580234642.

Adding to 1225242304 its reverse (4032425221), we get a palindrome (5257667525).

The spelling of 1225242304 in words is "one billion, two hundred twenty-five million, two hundred forty-two thousand, three hundred four".