442053211 has 4 divisors (see below), whose sum is σ = 456313024. Its totient is φ = 427793400.

The previous prime is 442053197. The next prime is 442053239. The reversal of 442053211 is 112350244.

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 442053211 - 2²¹ = 439956059 is a prime.

It is a super-2 number, since 2×442053211² = 390822082710821042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442053011) 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, 7129860 + ... + 7129921.

It is an arithmetic number, because the mean of its divisors is an integer number (114078256).

Almost surely, 2^442053211 is an apocalyptic number.

442053211 is a deficient number, since it is larger than the sum of its proper divisors (14259813).

442053211 is a wasteful number, since it uses less digits than its factorization.

442053211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14259812.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 442053211 is about 21025.0614981265. The cubic root of 442053211 is about 761.7717269628.

The spelling of 442053211 in words is "four hundred forty-two million, fifty-three thousand, two hundred eleven".