4220780 has 12 divisors (see below), whose sum is σ = 8863680. Its totient is φ = 1688304.

The previous prime is 4220771. The next prime is 4220789. The reversal of 4220780 is 870224.

It is an interprime number because it is at equal distance from previous prime (4220771) and next prime (4220789).

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (4220789) 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, 105500 + ... + 105539.

It is an arithmetic number, because the mean of its divisors is an integer number (738640).

Almost surely, 2^4220780 is an apocalyptic number.

It is an amenable number.

4220780 is an abundant number, since it is smaller than the sum of its proper divisors (4642900).

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

4220780 is a wasteful number, since it uses less digits than its factorization.

4220780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211048 (or 211046 counting only the distinct ones).

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

The square root of 4220780 is about 2054.4536986751. The cubic root of 4220780 is about 161.6085146479.

The spelling of 4220780 in words is "four million, two hundred twenty thousand, seven hundred eighty".