67564442 has 16 divisors (see below), whose sum is σ = 113549472. Its totient is φ = 29880720.

The previous prime is 67564423. The next prime is 67564447. The reversal of 67564442 is 24446576.

It is a junction number, because it is equal to n+sod(n) for n = 67564396 and 67564405.

It is not an unprimeable number, because it can be changed into a prime (67564447) 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 7 ways as a sum of consecutive naturals, for example, 40688 + ... + 42315.

It is an arithmetic number, because the mean of its divisors is an integer number (7096842).

Almost surely, 2^67564442 is an apocalyptic number.

67564442 is a deficient number, since it is larger than the sum of its proper divisors (45985030).

67564442 is a wasteful number, since it uses less digits than its factorization.

67564442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83053.

The product of its digits is 161280, while the sum is 38.

The square root of 67564442 is about 8219.7592422163. The cubic root of 67564442 is about 407.2921734993.

The spelling of 67564442 in words is "sixty-seven million, five hundred sixty-four thousand, four hundred forty-two".