2210778 has 24 divisors (see below), whose sum is σ = 4818528. Its totient is φ = 732552.

The previous prime is 2210777. The next prime is 2210779. The reversal of 2210778 is 8770122.

It is an interprime number because it is at equal distance from previous prime (2210777) and next prime (2210779).

It is not an unprimeable number, because it can be changed into a prime (2210773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4501 + ... + 4967.

It is an arithmetic number, because the mean of its divisors is an integer number (200772).

2^2210778 is an apocalyptic number.

2210778 is an abundant number, since it is smaller than the sum of its proper divisors (2607750).

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

2210778 is a wasteful number, since it uses less digits than its factorization.

2210778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738 (or 735 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 27.

The square root of 2210778 is about 1486.8685214235. The cubic root of 2210778 is about 130.2711893104.

The spelling of 2210778 in words is "two million, two hundred ten thousand, seven hundred seventy-eight".