442502239869 has 16 divisors (see below), whose sum is σ = 656862192000. Its totient is φ = 294415000128.

The previous prime is 442502239859. The next prime is 442502239877. The reversal of 442502239869 is 968932205244.

442502239869 is a `hidden beast` number, since 4 + 42 + 502 + 2 + 3 + 98 + 6 + 9 = 666.

It is not a de Polignac number, because 442502239869 - 2¹⁵ = 442502207101 is a prime.

It is a super-2 number, since 2×442502239869² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442502239859) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16277644 + ... + 16304805.

It is an arithmetic number, because the mean of its divisors is an integer number (41053887000).

Almost surely, 2^442502239869 is an apocalyptic number.

It is an amenable number.

442502239869 is a deficient number, since it is larger than the sum of its proper divisors (214359952131).

442502239869 is a wasteful number, since it uses less digits than its factorization.

442502239869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32582961 (or 32582955 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 54.

The spelling of 442502239869 in words is "four hundred forty-two billion, five hundred two million, two hundred thirty-nine thousand, eight hundred sixty-nine".