4218870 has 16 divisors (see below), whose sum is σ = 10125360. Its totient is φ = 1125024.

The previous prime is 4218869. The next prime is 4218899. The reversal of 4218870 is 788124.

It is a super-3 number, since 3×4218870³ (a number of 21 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 140629 = 4218870 / (4 + 2 + 1 + 8 + 8 + 7 + 0).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 70285 + ... + 70344.

It is an arithmetic number, because the mean of its divisors is an integer number (632835).

Almost surely, 2^4218870 is an apocalyptic number.

4218870 is an abundant number, since it is smaller than the sum of its proper divisors (5906490).

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

4218870 is a wasteful number, since it uses less digits than its factorization.

4218870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140639.

The product of its (nonzero) digits is 3584, while the sum is 30.

The square root of 4218870 is about 2053.9888023064. The cubic root of 4218870 is about 161.5841337803.

The spelling of 4218870 in words is "four million, two hundred eighteen thousand, eight hundred seventy".