42432245 has 8 divisors (see below), whose sum is σ = 51104184. Its totient is φ = 33822144.

The previous prime is 42432223. The next prime is 42432259. The reversal of 42432245 is 54223424.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7279204 + 35153041 = 2698^2 + 5929^2 .

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 42432245 - 2¹⁴ = 42415861 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13934 + ... + 16703.

It is an arithmetic number, because the mean of its divisors is an integer number (6388023).

Almost surely, 2^42432245 is an apocalyptic number.

It is an amenable number.

42432245 is a deficient number, since it is larger than the sum of its proper divisors (8671939).

42432245 is a wasteful number, since it uses less digits than its factorization.

42432245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30919.

The product of its digits is 7680, while the sum is 26.

The square root of 42432245 is about 6514.0037611288. The cubic root of 42432245 is about 348.7910534355.

Adding to 42432245 its reverse (54223424), we get a palindrome (96655669).

The spelling of 42432245 in words is "forty-two million, four hundred thirty-two thousand, two hundred forty-five".