442331401 has 4 divisors (see below), whose sum is σ = 444182400. Its totient is φ = 440480404.

The previous prime is 442331371. The next prime is 442331413. The reversal of 442331401 is 104133244.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 442331401 - 2¹³ = 442323209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442331441) 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, 925141 + ... + 925618.

It is an arithmetic number, because the mean of its divisors is an integer number (111045600).

Almost surely, 2^442331401 is an apocalyptic number.

It is an amenable number.

442331401 is a deficient number, since it is larger than the sum of its proper divisors (1850999).

442331401 is a wasteful number, since it uses less digits than its factorization.

442331401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1850998.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 442331401 is about 21031.6761338701. The cubic root of 442331401 is about 761.9314911667.

Adding to 442331401 its reverse (104133244), we get a palindrome (546464645).

The spelling of 442331401 in words is "four hundred forty-two million, three hundred thirty-one thousand, four hundred one".