4220854 has 16 divisors (see below), whose sum is σ = 6953040. Its totient is φ = 1905760.

The previous prime is 4220851. The next prime is 4220857. The reversal of 4220854 is 4580224.

4220854 = 62² + 63² + ... + 234².

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (4220851) and next prime (4220857).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4220851) 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 7 ways as a sum of consecutive naturals, for example, 3252 + ... + 4360.

It is an arithmetic number, because the mean of its divisors is an integer number (434565).

Almost surely, 2^4220854 is an apocalyptic number.

4220854 is a deficient number, since it is larger than the sum of its proper divisors (2732186).

4220854 is a wasteful number, since it uses less digits than its factorization.

4220854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1295.

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 4220854 is about 2054.4717082501. The cubic root of 4220854 is about 161.6094590990.

The spelling of 4220854 in words is "four million, two hundred twenty thousand, eight hundred fifty-four".