32142409 has 8 divisors (see below), whose sum is σ = 34662600. Its totient is φ = 29629056.

The previous prime is 32142403. The next prime is 32142419. The reversal of 32142409 is 90424123.

It can be written as a sum of positive squares in 4 ways, for example, as 2166784 + 29975625 = 1472^2 + 5475^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 32142409 - 2⁵ = 32142377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32142403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12459 + ... + 14815.

It is an arithmetic number, because the mean of its divisors is an integer number (4332825).

Almost surely, 2^32142409 is an apocalyptic number.

It is an amenable number.

32142409 is a deficient number, since it is larger than the sum of its proper divisors (2520191).

32142409 is a wasteful number, since it uses less digits than its factorization.

32142409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3419.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 32142409 is about 5669.4275725156. The cubic root of 32142409 is about 317.9504722254.

It can be divided in two parts, 3 and 2142409, that added together give a palindrome (2142412).

The spelling of 32142409 in words is "thirty-two million, one hundred forty-two thousand, four hundred nine".