1225404204 has 48 divisors (see below), whose sum is σ = 2888245248. Its totient is φ = 404345088.

The previous prime is 1225404199. The next prime is 1225404211. The reversal of 1225404204 is 4024045221.

It is a happy number.

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 15 ways as a sum of consecutive naturals, for example, 1253764 + ... + 1254740.

It is an arithmetic number, because the mean of its divisors is an integer number (60171776).

Almost surely, 2^1225404204 is an apocalyptic number.

It is an amenable number.

1225404204 is an abundant number, since it is smaller than the sum of its proper divisors (1662841044).

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

1225404204 is a wasteful number, since it uses less digits than its factorization.

1225404204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1934 (or 1932 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 1225404204 is about 35005.7738666066. The cubic root of 1225404204 is about 1070.1051528534.

Adding to 1225404204 its reverse (4024045221), we get a palindrome (5249449425).

The spelling of 1225404204 in words is "one billion, two hundred twenty-five million, four hundred four thousand, two hundred four".