1225769298 has 16 divisors (see below), whose sum is σ = 2640118656. Its totient is φ = 377159760.

The previous prime is 1225769297. The next prime is 1225769327. The reversal of 1225769298 is 8929675221.

It is a self number, because there is not a number n which added to its sum of digits gives 1225769298.

It is not an unprimeable number, because it can be changed into a prime (1225769297) by changing a digit.

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, 7857418 + ... + 7857573.

It is an arithmetic number, because the mean of its divisors is an integer number (165007416).

Almost surely, 2^1225769298 is an apocalyptic number.

1225769298 is an abundant number, since it is smaller than the sum of its proper divisors (1414349358).

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

1225769298 is a wasteful number, since it uses less digits than its factorization.

1225769298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15715009.

The product of its digits is 1088640, while the sum is 51.

The square root of 1225769298 is about 35010.9882465491. The cubic root of 1225769298 is about 1070.2114171580.

The spelling of 1225769298 in words is "one billion, two hundred twenty-five million, seven hundred sixty-nine thousand, two hundred ninety-eight".