4272820 has 12 divisors (see below), whose sum is σ = 8972964. Its totient is φ = 1709120.

The previous prime is 4272811. The next prime is 4272833. The reversal of 4272820 is 282724.

It can be written as a sum of positive squares in 2 ways, for example, as 685584 + 3587236 = 828^2 + 1894^2 .

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, 106801 + ... + 106840.

It is an arithmetic number, because the mean of its divisors is an integer number (747747).

Almost surely, 2^4272820 is an apocalyptic number.

It is an amenable number.

4272820 is an abundant number, since it is smaller than the sum of its proper divisors (4700144).

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

4272820 is a wasteful number, since it uses less digits than its factorization.

4272820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213650 (or 213648 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 4272820 is about 2067.0800661803. The cubic root of 4272820 is about 162.2699862132.

The spelling of 4272820 in words is "four million, two hundred seventy-two thousand, eight hundred twenty".