2190910849 has 8 divisors (see below), whose sum is σ = 2202353280. Its totient is φ = 2179487856.

The previous prime is 2190910847. The next prime is 2190910901. The reversal of 2190910849 is 9480190912.

It is a happy number.

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 2190910849 - 2¹ = 2190910847 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2190910847) 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, 257034 + ... + 265420.

It is an arithmetic number, because the mean of its divisors is an integer number (275294160).

Almost surely, 2^2190910849 is an apocalyptic number.

It is an amenable number.

2190910849 is a deficient number, since it is larger than the sum of its proper divisors (11442431).

2190910849 is a wasteful number, since it uses less digits than its factorization.

2190910849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9719.

The product of its (nonzero) digits is 46656, while the sum is 43.

The square root of 2190910849 is about 46807.1666414450. The cubic root of 2190910849 is about 1298.7978727433.

The spelling of 2190910849 in words is "two billion, one hundred ninety million, nine hundred ten thousand, eight hundred forty-nine".