2949778 has 8 divisors (see below), whose sum is σ = 4765068. Its totient is φ = 1361424.

The previous prime is 2949763. The next prime is 2949797. The reversal of 2949778 is 8779492.

It can be written as a sum of positive squares in 2 ways, for example, as 2712609 + 237169 = 1647^2 + 487^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56701 + ... + 56752.

2^2949778 is an apocalyptic number.

2949778 is a deficient number, since it is larger than the sum of its proper divisors (1815290).

2949778 is a wasteful number, since it uses less digits than its factorization.

2949778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113468.

The product of its digits is 254016, while the sum is 46.

The square root of 2949778 is about 1717.4917758173. The cubic root of 2949778 is about 143.4156164769.

The spelling of 2949778 in words is "two million, nine hundred forty-nine thousand, seven hundred seventy-eight".