1225860328 has 32 divisors (see below), whose sum is σ = 2865648960. Its totient is φ = 477607680.

The previous prime is 1225860289. The next prime is 1225860343. The reversal of 1225860328 is 8230685221.

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, 994401 + ... + 995632.

It is an arithmetic number, because the mean of its divisors is an integer number (89551530).

Almost surely, 2^1225860328 is an apocalyptic number.

It is an amenable number.

1225860328 is an abundant number, since it is smaller than the sum of its proper divisors (1639788632).

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

1225860328 is a wasteful number, since it uses less digits than its factorization.

1225860328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1990057 (or 1990053 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 1225860328 is about 35012.2882428441. The cubic root of 1225860328 is about 1070.2379090745.

The spelling of 1225860328 in words is "one billion, two hundred twenty-five million, eight hundred sixty thousand, three hundred twenty-eight".