2278755 has 24 divisors (see below), whose sum is σ = 4006080. Its totient is φ = 1198080.

The previous prime is 2278753. The next prime is 2278769. The reversal of 2278755 is 5578722.

It is not a de Polignac number, because 2278755 - 2¹ = 2278753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2278753) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3235 + ... + 3875.

It is an arithmetic number, because the mean of its divisors is an integer number (166920).

2^2278755 is an apocalyptic number.

2278755 is a deficient number, since it is larger than the sum of its proper divisors (1727325).

2278755 is a wasteful number, since it uses less digits than its factorization.

2278755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 731 (or 728 counting only the distinct ones).

The product of its digits is 39200, while the sum is 36.

The square root of 2278755 is about 1509.5545700636. The cubic root of 2278755 is about 131.5929263604.

The spelling of 2278755 in words is "two million, two hundred seventy-eight thousand, seven hundred fifty-five".