4200816 has 20 divisors (see below), whose sum is σ = 10852232. Its totient is φ = 1400256.

The previous prime is 4200809. The next prime is 4200821. The reversal of 4200816 is 6180024.

It is a super-3 number, since 3×4200816³ (a number of 21 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4200792 and 4200801.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43711 + ... + 43806.

Almost surely, 2^4200816 is an apocalyptic number.

It is an amenable number.

4200816 is an abundant number, since it is smaller than the sum of its proper divisors (6651416).

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

4200816 is a wasteful number, since it uses less digits than its factorization.

4200816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87528 (or 87522 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 4200816 is about 2049.5892271380. The cubic root of 4200816 is about 161.3533127971.

It can be divided in two parts, 42008 and 16, that added together give a palindrome (42024).

The spelling of 4200816 in words is "four million, two hundred thousand, eight hundred sixteen".