1227020886 has 80 divisors (see below), whose sum is σ = 3383961504. Its totient is φ = 323606016.

The previous prime is 1227020857. The next prime is 1227020897. The reversal of 1227020886 is 6880207221.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1227020886.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 26875 + ... + 56358.

Almost surely, 2^1227020886 is an apocalyptic number.

1227020886 is an abundant number, since it is smaller than the sum of its proper divisors (2156940618).

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

1227020886 is a wasteful number, since it uses less digits than its factorization.

1227020886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83267 (or 83258 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 1227020886 is about 35028.8579031632. The cubic root of 1227020886 is about 1070.5755444412.

The spelling of 1227020886 in words is "one billion, two hundred twenty-seven million, twenty thousand, eight hundred eighty-six".