4220078 has 8 divisors (see below), whose sum is σ = 6339168. Its totient is φ = 2107024.

The previous prime is 4220077. The next prime is 4220081. The reversal of 4220078 is 8700224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4220077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1250 + ... + 3162.

It is an arithmetic number, because the mean of its divisors is an integer number (792396).

Almost surely, 2^4220078 is an apocalyptic number.

4220078 is a deficient number, since it is larger than the sum of its proper divisors (2119090).

4220078 is a wasteful number, since it uses less digits than its factorization.

4220078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3018.

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 4220078 is about 2054.2828432326. The cubic root of 4220078 is about 161.5995545768.

The spelling of 4220078 in words is "four million, two hundred twenty thousand, seventy-eight".