2278066 has 32 divisors (see below), whose sum is σ = 4193280. Its totient is φ = 907200.

The previous prime is 2278063. The next prime is 2278069. The reversal of 2278066 is 6608722.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2278063) and next prime (2278069).

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (2278063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12496 + ... + 12676.

It is an arithmetic number, because the mean of its divisors is an integer number (131040).

2^2278066 is an apocalyptic number.

2278066 is a deficient number, since it is larger than the sum of its proper divisors (1915214).

2278066 is a wasteful number, since it uses less digits than its factorization.

2278066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 2278066 is about 1509.3263397953. The cubic root of 2278066 is about 131.5796622951.

The spelling of 2278066 in words is "two million, two hundred seventy-eight thousand, sixty-six".