442433401 has 2 divisors, whose sum is σ = 442433402. Its totient is φ = 442433400.

The previous prime is 442433399. The next prime is 442433423. The reversal of 442433401 is 104334244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 431642176 + 10791225 = 20776^2 + 3285^2 .

It is a cyclic number.

It is not a de Polignac number, because 442433401 - 2¹ = 442433399 is a prime.

Together with 442433399, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (442433441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221216700 + 221216701.

It is an arithmetic number, because the mean of its divisors is an integer number (221216701).

Almost surely, 2^442433401 is an apocalyptic number.

It is an amenable number.

442433401 is a deficient number, since it is larger than the sum of its proper divisors (1).

442433401 is an equidigital number, since it uses as much as digits as its factorization.

442433401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 442433401 is about 21034.1009078116. The cubic root of 442433401 is about 761.9900528688.

Adding to 442433401 its reverse (104334244), we get a palindrome (546767645).

The spelling of 442433401 in words is "four hundred forty-two million, four hundred thirty-three thousand, four hundred one".