4029820 has 12 divisors (see below), whose sum is σ = 8462664. Its totient is φ = 1611920.

The previous prime is 4029803. The next prime is 4029829. The reversal of 4029820 is 289204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4029829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100726 + ... + 100765.

It is an arithmetic number, because the mean of its divisors is an integer number (705222).

Almost surely, 2^4029820 is an apocalyptic number.

It is an amenable number.

4029820 is an abundant number, since it is smaller than the sum of its proper divisors (4432844).

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

4029820 is a wasteful number, since it uses less digits than its factorization.

4029820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201500 (or 201498 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 4029820 is about 2007.4411572945. The cubic root of 4029820 is about 159.1335981422.

The spelling of 4029820 in words is "four million, twenty-nine thousand, eight hundred twenty".