2236249887 has 16 divisors (see below), whose sum is σ = 3170625120. Its totient is φ = 1397107712.

The previous prime is 2236249871. The next prime is 2236249889. The reversal of 2236249887 is 7889426322.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2236249887 - 2⁴ = 2236249871 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2236249889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82212 + ... + 105977.

It is an arithmetic number, because the mean of its divisors is an integer number (198164070).

Almost surely, 2^2236249887 is an apocalyptic number.

2236249887 is a deficient number, since it is larger than the sum of its proper divisors (934375233).

2236249887 is a wasteful number, since it uses less digits than its factorization.

2236249887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188442.

The product of its digits is 2322432, while the sum is 51.

The square root of 2236249887 is about 47289.0038698216. The cubic root of 2236249887 is about 1307.6959454906.

The spelling of 2236249887 in words is "two billion, two hundred thirty-six million, two hundred forty-nine thousand, eight hundred eighty-seven".