442681029 has 24 divisors (see below), whose sum is σ = 731440320. Its totient is φ = 252730368.

The previous prime is 442681021. The next prime is 442681033. The reversal of 442681029 is 920186244.

It is not a de Polignac number, because 442681029 - 2³ = 442681021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 442680984 and 442681002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442681021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 86274 + ... + 91260.

It is an arithmetic number, because the mean of its divisors is an integer number (30476680).

Almost surely, 2^442681029 is an apocalyptic number.

It is an amenable number.

442681029 is a deficient number, since it is larger than the sum of its proper divisors (288759291).

442681029 is a wasteful number, since it uses less digits than its factorization.

442681029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6409 (or 6406 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 442681029 is about 21039.9864306040. The cubic root of 442681029 is about 762.1321871654.

The spelling of 442681029 in words is "four hundred forty-two million, six hundred eighty-one thousand, twenty-nine".