2819949 has 8 divisors (see below), whose sum is σ = 4101792. Its totient is φ = 1709040.

The previous prime is 2819933. The next prime is 2819951. The reversal of 2819949 is 9499182.

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

It is not a de Polignac number, because 2819949 - 2⁴ = 2819933 is a prime.

It is a super-2 number, since 2×2819949² = 15904224725202, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2819949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2819959) 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, 42694 + ... + 42759.

It is an arithmetic number, because the mean of its divisors is an integer number (512724).

2^2819949 is an apocalyptic number.

It is an amenable number.

2819949 is a deficient number, since it is larger than the sum of its proper divisors (1281843).

2819949 is a wasteful number, since it uses less digits than its factorization.

2819949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85467.

The product of its digits is 46656, while the sum is 42.

The square root of 2819949 is about 1679.2703772770. The cubic root of 2819949 is about 141.2799127397.

The spelling of 2819949 in words is "two million, eight hundred nineteen thousand, nine hundred forty-nine".