4349820 has 24 divisors (see below), whose sum is σ = 12179664. Its totient is φ = 1159936.

The previous prime is 4349801. The next prime is 4349833. The reversal of 4349820 is 289434.

It is a happy number.

4349820 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36189 + ... + 36308.

It is an arithmetic number, because the mean of its divisors is an integer number (507486).

Almost surely, 2^4349820 is an apocalyptic number.

It is an amenable number.

4349820 is an abundant number, since it is smaller than the sum of its proper divisors (7829844).

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

4349820 is a wasteful number, since it uses less digits than its factorization.

4349820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72509 (or 72507 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 4349820 is about 2085.6222093179. The cubic root of 4349820 is about 163.2389384693.

The spelling of 4349820 in words is "four million, three hundred forty-nine thousand, eight hundred twenty".