2779968 has 28 divisors (see below), whose sum is σ = 7355840. Its totient is φ = 926592.

The previous prime is 2779961. The next prime is 2779981. The reversal of 2779968 is 8699772.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2779961) 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, 7048 + ... + 7431.

2^2779968 is an apocalyptic number.

It is an amenable number.

2779968 is an abundant number, since it is smaller than the sum of its proper divisors (4575872).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2779968 is a wasteful number, since it uses less digits than its factorization.

2779968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14494 (or 14484 counting only the distinct ones).

The product of its digits is 381024, while the sum is 48.

The square root of 2779968 is about 1667.3236038634. The cubic root of 2779968 is about 140.6090472768.

The spelling of 2779968 in words is "two million, seven hundred seventy-nine thousand, nine hundred sixty-eight".