42032217 has 4 divisors (see below), whose sum is σ = 56042960. Its totient is φ = 28021476.

The previous prime is 42032203. The next prime is 42032227. The reversal of 42032217 is 71223024.

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.

It is not a de Polignac number, because 42032217 - 2⁶ = 42032153 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42032193 and 42032202.

It is not an unprimeable number, because it can be changed into a prime (42032227) 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, 7005367 + ... + 7005372.

It is an arithmetic number, because the mean of its divisors is an integer number (14010740).

Almost surely, 2^42032217 is an apocalyptic number.

It is an amenable number.

42032217 is a deficient number, since it is larger than the sum of its proper divisors (14010743).

42032217 is a wasteful number, since it uses less digits than its factorization.

42032217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14010742.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 42032217 is about 6483.2258174461. The cubic root of 42032217 is about 347.6915204637.

The spelling of 42032217 in words is "forty-two million, thirty-two thousand, two hundred seventeen".