1225875744 has 72 divisors (see below), whose sum is σ = 3669578640. Its totient is φ = 387116928.

The previous prime is 1225875731. The next prime is 1225875757. The reversal of 1225875744 is 4475785221.

1225875744 is a `hidden beast` number, since 1 + 22 + 58 + 7 + 574 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (1225875731) and next prime (1225875757).

It is a tau number, because it is divible by the number of its divisors (72).

It is a self number, because there is not a number n which added to its sum of digits gives 1225875744.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 106542 + ... + 117485.

It is an arithmetic number, because the mean of its divisors is an integer number (50966370).

Almost surely, 2^1225875744 is an apocalyptic number.

It is an amenable number.

1225875744 is an abundant number, since it is smaller than the sum of its proper divisors (2443702896).

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

1225875744 is a wasteful number, since it uses less digits than its factorization.

1225875744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224062 (or 224051 counting only the distinct ones).

The product of its digits is 627200, while the sum is 45.

The square root of 1225875744 is about 35012.5083934299. The cubic root of 1225875744 is about 1070.2423953709.

The spelling of 1225875744 in words is "one billion, two hundred twenty-five million, eight hundred seventy-five thousand, seven hundred forty-four".