442246437 has 12 divisors (see below), whose sum is σ = 643678464. Its totient is φ = 292579560.

The previous prime is 442246411. The next prime is 442246447. The reversal of 442246437 is 734642244.

442246437 is a `hidden beast` number, since 4 + 4 + 2 + 2 + 4 + 643 + 7 = 666.

It is not a de Polignac number, because 442246437 - 2⁶ = 442246373 is a prime.

It is a super-2 number, since 2×442246437² = 391163822078389938, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442246447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 186373 + ... + 188730.

It is an arithmetic number, because the mean of its divisors is an integer number (53639872).

Almost surely, 2^442246437 is an apocalyptic number.

It is an amenable number.

442246437 is a deficient number, since it is larger than the sum of its proper divisors (201432027).

442246437 is a wasteful number, since it uses less digits than its factorization.

442246437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375240 (or 375237 counting only the distinct ones).

The product of its digits is 129024, while the sum is 36.

The square root of 442246437 is about 21029.6561312828. The cubic root of 442246437 is about 761.8827035440.

The spelling of 442246437 in words is "four hundred forty-two million, two hundred forty-six thousand, four hundred thirty-seven".