4006536 has 32 divisors (see below), whose sum is σ = 10096800. Its totient is φ = 1324800.

The previous prime is 4006529. The next prime is 4006537. The reversal of 4006536 is 6356004.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (4006537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2736 + ... + 3936.

It is an arithmetic number, because the mean of its divisors is an integer number (315525).

Almost surely, 2^4006536 is an apocalyptic number.

It is an amenable number.

4006536 is an abundant number, since it is smaller than the sum of its proper divisors (6090264).

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

4006536 is a wasteful number, since it uses less digits than its factorization.

4006536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1349 (or 1345 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 4006536 is about 2001.6333330558. The cubic root of 4006536 is about 158.8265185914.

Adding to 4006536 its product of nonzero digits (2160), we get a triangular number (4008696 = T₂₈₃₁).

The spelling of 4006536 in words is "four million, six thousand, five hundred thirty-six".