4006020 has 48 divisors (see below), whose sum is σ = 11309760. Its totient is φ = 1059456.

The previous prime is 4006019. The next prime is 4006039. The reversal of 4006020 is 206004.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 4005987 and 4006005.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10554 + ... + 10926.

It is an arithmetic number, because the mean of its divisors is an integer number (235620).

Almost surely, 2^4006020 is an apocalyptic number.

It is an amenable number.

4006020 is an abundant number, since it is smaller than the sum of its proper divisors (7303740).

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

4006020 is a wasteful number, since it uses less digits than its factorization.

4006020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564 (or 562 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 4006020 is about 2001.5044341695. The cubic root of 4006020 is about 158.8196998996.

The spelling of 4006020 in words is "four million, six thousand, twenty".