4809816 has 48 divisors (see below), whose sum is σ = 14213160. Its totient is φ = 1457280.

The previous prime is 4809811. The next prime is 4809859. The reversal of 4809816 is 6189084.

It is a happy number.

It is a super-3 number, since 3×4809816³ (a number of 21 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4809811) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2245 + ... + 3828.

Almost surely, 2^4809816 is an apocalyptic number.

It is an amenable number.

4809816 is an abundant number, since it is smaller than the sum of its proper divisors (9403344).

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

4809816 is a wasteful number, since it uses less digits than its factorization.

4809816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6096 (or 6089 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 4809816 is about 2193.1292711557. The cubic root of 4809816 is about 168.8014427525.

It can be divided in two parts, 4809 and 816, that added together give a square (5625 = 75²).

The spelling of 4809816 in words is "four million, eight hundred nine thousand, eight hundred sixteen".