442043411 has 2 divisors, whose sum is σ = 442043412. Its totient is φ = 442043410.

The previous prime is 442043389. The next prime is 442043447. The reversal of 442043411 is 114340244.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 442043411 - 2⁶ = 442043347 is a prime.

It is not a weakly prime, because it can be changed into another prime (442043461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221021705 + 221021706.

It is an arithmetic number, because the mean of its divisors is an integer number (221021706).

Almost surely, 2^442043411 is an apocalyptic number.

442043411 is a deficient number, since it is larger than the sum of its proper divisors (1).

442043411 is an equidigital number, since it uses as much as digits as its factorization.

442043411 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 442043411 is about 21024.8284416306. The cubic root of 442043411 is about 761.7660976117.

Adding to 442043411 its reverse (114340244), we get a palindrome (556383655).

The spelling of 442043411 in words is "four hundred forty-two million, forty-three thousand, four hundred eleven".