4209876820 has 24 divisors (see below), whose sum is σ = 8952652800. Its totient is φ = 1662634272.

The previous prime is 4209876767. The next prime is 4209876823. The reversal of 4209876820 is 286789024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4209876823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1330660 + ... + 1333819.

It is an arithmetic number, because the mean of its divisors is an integer number (373027200).

Almost surely, 2^4209876820 is an apocalyptic number.

It is an amenable number.

4209876820 is an abundant number, since it is smaller than the sum of its proper divisors (4742775980).

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

4209876820 is a wasteful number, since it uses less digits than its factorization.

4209876820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2664567 (or 2664565 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 46.

The square root of 4209876820 is about 64883.5635581154. The cubic root of 4209876820 is about 1614.6923816710.

The spelling of 4209876820 in words is "four billion, two hundred nine million, eight hundred seventy-six thousand, eight hundred twenty".