2775944 has 16 divisors (see below), whose sum is σ = 5283600. Its totient is φ = 1366992.

The previous prime is 2775943. The next prime is 2775959. The reversal of 2775944 is 4495772.

It is a super-2 number, since 2×2775944² = 15411730182272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2775898 and 2775907.

It is not an unprimeable number, because it can be changed into a prime (2775943) 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, 2054 + ... + 3125.

It is an arithmetic number, because the mean of its divisors is an integer number (330225).

2^2775944 is an apocalyptic number.

It is an amenable number.

2775944 is a deficient number, since it is larger than the sum of its proper divisors (2507656).

2775944 is a wasteful number, since it uses less digits than its factorization.

2775944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5252 (or 5248 counting only the distinct ones).

The product of its digits is 70560, while the sum is 38.

The square root of 2775944 is about 1666.1164425093. The cubic root of 2775944 is about 140.5411707126.

The spelling of 2775944 in words is "two million, seven hundred seventy-five thousand, nine hundred forty-four".