32245409 has 4 divisors (see below), whose sum is σ = 36851904. Its totient is φ = 27638916.

The previous prime is 32245397. The next prime is 32245439. The reversal of 32245409 is 90454223.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 90454223 = 211 ⋅428693.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32245409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32245439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2303237 + ... + 2303250.

It is an arithmetic number, because the mean of its divisors is an integer number (9212976).

Almost surely, 2^32245409 is an apocalyptic number.

It is an amenable number.

32245409 is a deficient number, since it is larger than the sum of its proper divisors (4606495).

32245409 is an equidigital number, since it uses as much as digits as its factorization.

32245409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4606494.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 32245409 is about 5678.5041164025. The cubic root of 32245409 is about 318.2897330404.

The spelling of 32245409 in words is "thirty-two million, two hundred forty-five thousand, four hundred nine".