4149820 has 12 divisors (see below), whose sum is σ = 8714664. Its totient is φ = 1659920.

The previous prime is 4149811. The next prime is 4149833. The reversal of 4149820 is 289414.

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 3 ways as a sum of consecutive naturals, for example, 103726 + ... + 103765.

It is an arithmetic number, because the mean of its divisors is an integer number (726222).

Almost surely, 2^4149820 is an apocalyptic number.

It is an amenable number.

4149820 is an abundant number, since it is smaller than the sum of its proper divisors (4564844).

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

4149820 is a wasteful number, since it uses less digits than its factorization.

4149820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207500 (or 207498 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 4149820 is about 2037.1106990048. The cubic root of 4149820 is about 160.6977341214.

The spelling of 4149820 in words is "four million, one hundred forty-nine thousand, eight hundred twenty".