2849402749 has 4 divisors (see below), whose sum is σ = 2864321280. Its totient is φ = 2834484220.

The previous prime is 2849402747. The next prime is 2849402761. The reversal of 2849402749 is 9472049482.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2849402749 - 2¹ = 2849402747 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2849402747) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7458979 + ... + 7459360.

It is an arithmetic number, because the mean of its divisors is an integer number (716080320).

Almost surely, 2^2849402749 is an apocalyptic number.

It is an amenable number.

2849402749 is a deficient number, since it is larger than the sum of its proper divisors (14918531).

2849402749 is a wasteful number, since it uses less digits than its factorization.

2849402749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14918530.

The product of its (nonzero) digits is 1161216, while the sum is 49.

The square root of 2849402749 is about 53379.7971989403. The cubic root of 2849402749 is about 1417.7008932178.

The spelling of 2849402749 in words is "two billion, eight hundred forty-nine million, four hundred two thousand, seven hundred forty-nine".