4220828 has 12 divisors (see below), whose sum is σ = 7821072. Its totient is φ = 1986240.

The previous prime is 4220819. The next prime is 4220851. The reversal of 4220828 is 8280224.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 4220797 and 4220806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30968 + ... + 31103.

It is an arithmetic number, because the mean of its divisors is an integer number (651756).

Almost surely, 2^4220828 is an apocalyptic number.

It is an amenable number.

4220828 is a deficient number, since it is larger than the sum of its proper divisors (3600244).

4220828 is a wasteful number, since it uses less digits than its factorization.

4220828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62092 (or 62090 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 26.

The square root of 4220828 is about 2054.4653805796. The cubic root of 4220828 is about 161.6091272661.

The spelling of 4220828 in words is "four million, two hundred twenty thousand, eight hundred twenty-eight".