4071820 has 12 divisors (see below), whose sum is σ = 8550864. Its totient is φ = 1628720.

The previous prime is 4071797. The next prime is 4071827. The reversal of 4071820 is 281704.

It is a super-2 number, since 2×4071820² = 33159436224800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4071791 and 4071800.

It is not an unprimeable number, because it can be changed into a prime (4071827) 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, 101776 + ... + 101815.

It is an arithmetic number, because the mean of its divisors is an integer number (712572).

Almost surely, 2^4071820 is an apocalyptic number.

It is an amenable number.

4071820 is an abundant number, since it is smaller than the sum of its proper divisors (4479044).

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

4071820 is a wasteful number, since it uses less digits than its factorization.

4071820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203600 (or 203598 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 4071820 is about 2017.8751200211. The cubic root of 4071820 is about 159.6845346689.

The spelling of 4071820 in words is "four million, seventy-one thousand, eight hundred twenty".