1272244086 has 24 divisors (see below), whose sum is σ = 2789743320. Its totient is φ = 418971456.

The previous prime is 1272244069. The next prime is 1272244091. The reversal of 1272244086 is 6804422721.

1272244086 is a `hidden beast` number, since 1 + 27 + 224 + 408 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1272244086.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 424291 + ... + 427278.

It is an arithmetic number, because the mean of its divisors is an integer number (116239305).

Almost surely, 2^1272244086 is an apocalyptic number.

1272244086 is an abundant number, since it is smaller than the sum of its proper divisors (1517499234).

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

1272244086 is a wasteful number, since it uses less digits than its factorization.

1272244086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851660 (or 851657 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 1272244086 is about 35668.5307519107. The cubic root of 1272244086 is about 1083.5696033991.

The spelling of 1272244086 in words is "one billion, two hundred seventy-two million, two hundred forty-four thousand, eighty-six".