442249601 has 4 divisors (see below), whose sum is σ = 442951104. Its totient is φ = 441548100.

The previous prime is 442249597. The next prime is 442249607. The reversal of 442249601 is 106942244.

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 442249601 - 2² = 442249597 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442249607) 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, 349805 + ... + 351066.

It is an arithmetic number, because the mean of its divisors is an integer number (110737776).

Almost surely, 2^442249601 is an apocalyptic number.

It is an amenable number.

442249601 is a deficient number, since it is larger than the sum of its proper divisors (701503).

442249601 is an equidigital number, since it uses as much as digits as its factorization.

442249601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701502.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 442249601 is about 21029.7313582461. The cubic root of 442249601 is about 761.8845204730.

The spelling of 442249601 in words is "four hundred forty-two million, two hundred forty-nine thousand, six hundred one".