2278750 has 20 divisors (see below), whose sum is σ = 4273632. Its totient is φ = 911000.

The previous prime is 2278747. The next prime is 2278753. The reversal of 2278750 is 578722.

2278750 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2278747) and next prime (2278753).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2278753) 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 9 ways as a sum of consecutive naturals, for example, 339 + ... + 2161.

2^2278750 is an apocalyptic number.

2278750 is a deficient number, since it is larger than the sum of its proper divisors (1994882).

2278750 is an equidigital number, since it uses as much as digits as its factorization.

2278750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1845 (or 1830 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 2278750 is about 1509.5529139451. The cubic root of 2278750 is about 131.5928301141.

The spelling of 2278750 in words is "two million, two hundred seventy-eight thousand, seven hundred fifty".