1225016304 has 20 divisors (see below), whose sum is σ = 3164625576. Its totient is φ = 408338752.

The previous prime is 1225016291. The next prime is 1225016323. The reversal of 1225016304 is 4036105221.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 12760539 + ... + 12760634.

Almost surely, 2^1225016304 is an apocalyptic number.

It is an amenable number.

1225016304 is an abundant number, since it is smaller than the sum of its proper divisors (1939609272).

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

1225016304 is a wasteful number, since it uses less digits than its factorization.

1225016304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25521184 (or 25521178 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1225016304 is about 35000.2329135107. The cubic root of 1225016304 is about 1069.9922275034.

The spelling of 1225016304 in words is "one billion, two hundred twenty-five million, sixteen thousand, three hundred four".