442212537 has 8 divisors (see below), whose sum is σ = 634971904. Its totient is φ = 272130768.

The previous prime is 442212527. The next prime is 442212539. The reversal of 442212537 is 735212244.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 442212537 - 2¹⁵ = 442179769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442212539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5669353 + ... + 5669430.

It is an arithmetic number, because the mean of its divisors is an integer number (79371488).

Almost surely, 2^442212537 is an apocalyptic number.

It is an amenable number.

442212537 is a deficient number, since it is larger than the sum of its proper divisors (192759367).

442212537 is a wasteful number, since it uses less digits than its factorization.

442212537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11338799.

The product of its digits is 13440, while the sum is 30.

The square root of 442212537 is about 21028.8501112163. The cubic root of 442212537 is about 761.8632359037.

The spelling of 442212537 in words is "four hundred forty-two million, two hundred twelve thousand, five hundred thirty-seven".