1225888886 has 8 divisors (see below), whose sum is σ = 1840129824. Its totient is φ = 612512280.

The previous prime is 1225888877. The next prime is 1225888897. The reversal of 1225888886 is 6888885221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 212525 + ... + 218216.

It is an arithmetic number, because the mean of its divisors is an integer number (230016228).

Almost surely, 2^1225888886 is an apocalyptic number.

1225888886 is a deficient number, since it is larger than the sum of its proper divisors (614240938).

1225888886 is a wasteful number, since it uses less digits than its factorization.

1225888886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432166.

The product of its digits is 3932160, while the sum is 56.

The square root of 1225888886 is about 35012.6960687120. The cubic root of 1225888886 is about 1070.2462198682.

The spelling of 1225888886 in words is "one billion, two hundred twenty-five million, eight hundred eighty-eight thousand, eight hundred eighty-six".