2194849769 has 8 divisors (see below), whose sum is σ = 2509490880. Its totient is φ = 1880481456.

The previous prime is 2194849729. The next prime is 2194849793. The reversal of 2194849769 is 9679484912.

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

It is not a de Polignac number, because 2194849769 - 2⁸ = 2194849513 is a prime.

It is a super-2 number, since 2×2194849769² = 9634731016958706722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2194849729) 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, 50654 + ... + 83399.

It is an arithmetic number, because the mean of its divisors is an integer number (313686360).

Almost surely, 2^2194849769 is an apocalyptic number.

It is an amenable number.

2194849769 is a deficient number, since it is larger than the sum of its proper divisors (314641111).

2194849769 is a wasteful number, since it uses less digits than its factorization.

2194849769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136399.

The product of its digits is 7838208, while the sum is 59.

The square root of 2194849769 is about 46849.2237822571. The cubic root of 2194849769 is about 1299.5757528861.

It can be divided in two parts, 21948 and 49769, that added together give a palindrome (71717).

The spelling of 2194849769 in words is "two billion, one hundred ninety-four million, eight hundred forty-nine thousand, seven hundred sixty-nine".