1225335880 has 16 divisors (see below), whose sum is σ = 2757005820. Its totient is φ = 490134336.

The previous prime is 1225335871. The next prime is 1225335883. The reversal of 1225335880 is 885335221.

It can be written as a sum of positive squares in 2 ways, for example, as 1140953284 + 84382596 = 33778^2 + 9186^2 .

It is not an unprimeable number, because it can be changed into a prime (1225335883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15316659 + ... + 15316738.

Almost surely, 2^1225335880 is an apocalyptic number.

1225335880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1225335880 is an abundant number, since it is smaller than the sum of its proper divisors (1531669940).

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

1225335880 is a wasteful number, since it uses less digits than its factorization.

1225335880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30633408 (or 30633404 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 1225335880 is about 35004.7979568516. The cubic root of 1225335880 is about 1070.0852641170.

The spelling of 1225335880 in words is "one billion, two hundred twenty-five million, three hundred thirty-five thousand, eight hundred eighty".