442829797 has 4 divisors (see below), whose sum is σ = 458099820. Its totient is φ = 427559776.

The previous prime is 442829791. The next prime is 442829813. The reversal of 442829797 is 797928244.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 298805796 + 144024001 = 17286^2 + 12001^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-442829797 is a prime.

It is a super-2 number, since 2×442829797² = 392196458222122418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442829791) 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, 7634968 + ... + 7635025.

It is an arithmetic number, because the mean of its divisors is an integer number (114524955).

Almost surely, 2^442829797 is an apocalyptic number.

It is an amenable number.

442829797 is a deficient number, since it is larger than the sum of its proper divisors (15270023).

442829797 is a wasteful number, since it uses less digits than its factorization.

442829797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15270022.

The product of its digits is 2032128, while the sum is 52.

The square root of 442829797 is about 21043.5214971259. The cubic root of 442829797 is about 762.2175520031.

It can be divided in two parts, 4428 and 29797, that added together give a square (34225 = 185²).

The spelling of 442829797 in words is "four hundred forty-two million, eight hundred twenty-nine thousand, seven hundred ninety-seven".