2236720989 has 8 divisors (see below), whose sum is σ = 2994177312. Its totient is φ = 1485206000.

The previous prime is 2236720943. The next prime is 2236721009. The reversal of 2236720989 is 9890276322.

2236720989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2236720989 - 2¹² = 2236716893 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2236720919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1484454 + ... + 1485959.

It is an arithmetic number, because the mean of its divisors is an integer number (374272164).

Almost surely, 2^2236720989 is an apocalyptic number.

It is an amenable number.

2236720989 is a deficient number, since it is larger than the sum of its proper divisors (757456323).

2236720989 is a wasteful number, since it uses less digits than its factorization.

2236720989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2970667.

The product of its (nonzero) digits is 653184, while the sum is 48.

The square root of 2236720989 is about 47293.9847020739. The cubic root of 2236720989 is about 1307.7877681030.

The spelling of 2236720989 in words is "two billion, two hundred thirty-six million, seven hundred twenty thousand, nine hundred eighty-nine".