442011401 has 16 divisors (see below), whose sum is σ = 498400896. Its totient is φ = 388941696.

The previous prime is 442011397. The next prime is 442011439. The reversal of 442011401 is 104110244.

It is not a de Polignac number, because 442011401 - 2² = 442011397 is a prime.

It is a super-2 number, since 2×442011401² = 390748157227965602, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 442011401.

It is not an unprimeable number, because it can be changed into a prime (442011001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91226 + ... + 95948.

It is an arithmetic number, because the mean of its divisors is an integer number (31150056).

Almost surely, 2^442011401 is an apocalyptic number.

It is an amenable number.

442011401 is a deficient number, since it is larger than the sum of its proper divisors (56389495).

442011401 is a wasteful number, since it uses less digits than its factorization.

442011401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5072.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 442011401 is about 21024.0671850144. The cubic root of 442011401 is about 761.7477097334.

Adding to 442011401 its reverse (104110244), we get a palindrome (546121645).

The spelling of 442011401 in words is "four hundred forty-two million, eleven thousand, four hundred one".