2011278 has 8 divisors (see below), whose sum is σ = 4022568. Its totient is φ = 670424.

The previous prime is 2011277. The next prime is 2011291. The reversal of 2011278 is 8721102.

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

2011278 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167601 + ... + 167612.

It is an arithmetic number, because the mean of its divisors is an integer number (502821).

2^2011278 is an apocalyptic number.

2011278 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2011278 is a wasteful number, since it uses less digits than its factorization.

2011278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335218.

The product of its (nonzero) digits is 224, while the sum is 21.

The square root of 2011278 is about 1418.1953321034. The cubic root of 2011278 is about 126.2284843902.

The spelling of 2011278 in words is "two million, eleven thousand, two hundred seventy-eight".