67442512 has 10 divisors (see below), whose sum is σ = 130669898. Its totient is φ = 33721248.

The previous prime is 67442471. The next prime is 67442513. The reversal of 67442512 is 21524476.

It can be written as a sum of positive squares in only one way, i.e., 63616576 + 3825936 = 7976^2 + 1956^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67442513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2107563 + ... + 2107594.

Almost surely, 2^67442512 is an apocalyptic number.

It is an amenable number.

67442512 is a deficient number, since it is larger than the sum of its proper divisors (63227386).

67442512 is a wasteful number, since it uses less digits than its factorization.

67442512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4215165 (or 4215159 counting only the distinct ones).

The product of its digits is 13440, while the sum is 31.

The square root of 67442512 is about 8212.3390090765. The cubic root of 67442512 is about 407.0470197032.

Adding to 67442512 its reverse (21524476), we get a palindrome (88966988).

The spelling of 67442512 in words is "sixty-seven million, four hundred forty-two thousand, five hundred twelve".