442312101 has 48 divisors (see below), whose sum is σ = 798540288. Its totient is φ = 229197600.

The previous prime is 442312099. The next prime is 442312109. The reversal of 442312101 is 101213244.

It is not a de Polignac number, because 442312101 - 2¹ = 442312099 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442312109) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 544986 + ... + 545796.

It is an arithmetic number, because the mean of its divisors is an integer number (16636256).

Almost surely, 2^442312101 is an apocalyptic number.

It is an amenable number.

442312101 is a deficient number, since it is larger than the sum of its proper divisors (356228187).

442312101 is a wasteful number, since it uses less digits than its factorization.

442312101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1622 (or 1619 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 442312101 is about 21031.2172971514. The cubic root of 442312101 is about 761.9204093612.

Adding to 442312101 its reverse (101213244), we get a palindrome (543525345).

The spelling of 442312101 in words is "four hundred forty-two million, three hundred twelve thousand, one hundred one".