442450207 has 4 divisors (see below), whose sum is σ = 465737080. Its totient is φ = 419163336.

The previous prime is 442450193. The next prime is 442450291. The reversal of 442450207 is 702054244.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 442450207 - 2⁷ = 442450079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442450907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11643408 + ... + 11643445.

It is an arithmetic number, because the mean of its divisors is an integer number (116434270).

Almost surely, 2^442450207 is an apocalyptic number.

442450207 is a deficient number, since it is larger than the sum of its proper divisors (23286873).

442450207 is a wasteful number, since it uses less digits than its factorization.

442450207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23286872.

The product of its (nonzero) digits is 8960, while the sum is 28.

The square root of 442450207 is about 21034.5003981554. The cubic root of 442450207 is about 761.9997009067. Note that the first 3 decimals are identical.

The spelling of 442450207 in words is "four hundred forty-two million, four hundred fifty thousand, two hundred seven".