2242878 has 32 divisors (see below), whose sum is σ = 5184000. Its totient is φ = 639360.

The previous prime is 2242873. The next prime is 2242879. The reversal of 2242878 is 8782422.

2242878 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2242871) 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 15 ways as a sum of consecutive naturals, for example, 123 + ... + 2121.

It is an arithmetic number, because the mean of its divisors is an integer number (162000).

2^2242878 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2242878, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2592000).

2242878 is an abundant number, since it is smaller than the sum of its proper divisors (2941122).

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

2242878 is a wasteful number, since it uses less digits than its factorization.

2242878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2032.

The product of its digits is 14336, while the sum is 33.

The square root of 2242878 is about 1497.6241183955. The cubic root of 2242878 is about 130.8986649069.

The spelling of 2242878 in words is "two million, two hundred forty-two thousand, eight hundred seventy-eight".