442259001 has 8 divisors (see below), whose sum is σ = 655198560. Its totient is φ = 294839316.

The previous prime is 442258997. The next prime is 442259003. The reversal of 442259001 is 100952244.

It is not a de Polignac number, because 442259001 - 2² = 442258997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 16379963 = 442259001 / (4 + 4 + 2 + 2 + 5 + 9 + 0 + 0 + 1).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (442259003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8189955 + ... + 8190008.

It is an arithmetic number, because the mean of its divisors is an integer number (81899820).

Almost surely, 2^442259001 is an apocalyptic number.

It is an amenable number.

442259001 is a deficient number, since it is larger than the sum of its proper divisors (212939559).

442259001 is a wasteful number, since it uses less digits than its factorization.

442259001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16379972 (or 16379966 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 442259001 is about 21029.9548501655. The cubic root of 442259001 is about 761.8899183778.

The spelling of 442259001 in words is "four hundred forty-two million, two hundred fifty-nine thousand, one".