32020406 has 16 divisors (see below), whose sum is σ = 52498368. Its totient is φ = 14526600.

The previous prime is 32020403. The next prime is 32020409. The reversal of 32020406 is 60402023.

It is an interprime number because it is at equal distance from previous prime (32020403) and next prime (32020409).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32020403) 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, 13961 + ... + 16091.

It is an arithmetic number, because the mean of its divisors is an integer number (3281148).

Almost surely, 2^32020406 is an apocalyptic number.

32020406 is a deficient number, since it is larger than the sum of its proper divisors (20477962).

32020406 is a wasteful number, since it uses less digits than its factorization.

32020406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2827.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 32020406 is about 5658.6576146645. The cubic root of 32020406 is about 317.5476804413.

Adding to 32020406 its reverse (60402023), we get a palindrome (92422429).

The spelling of 32020406 in words is "thirty-two million, twenty thousand, four hundred six".