2278526 has 4 divisors (see below), whose sum is σ = 3417792. Its totient is φ = 1139262.

The previous prime is 2278519. The next prime is 2278543. The reversal of 2278526 is 6258722.

2278526 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a d-powerful number, because it can be written as 2 + 2¹⁷ + 7 + 8³ + 5⁵ + 2²¹ + 6⁶ .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2278492 and 2278501.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 569630 + ... + 569633.

It is an arithmetic number, because the mean of its divisors is an integer number (854448).

2^2278526 is an apocalyptic number.

2278526 is a deficient number, since it is larger than the sum of its proper divisors (1139266).

2278526 is a wasteful number, since it uses less digits than its factorization.

2278526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1139265.

The product of its digits is 13440, while the sum is 32.

The square root of 2278526 is about 1509.4787179686. The cubic root of 2278526 is about 131.5885181361.

The spelling of 2278526 in words is "two million, two hundred seventy-eight thousand, five hundred twenty-six".