67704442 has 24 divisors (see below), whose sum is σ = 110467584. Its totient is φ = 31107024.

The previous prime is 67704419. The next prime is 67704443. The reversal of 67704442 is 24440776.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 67704398 and 67704407.

It is not an unprimeable number, because it can be changed into a prime (67704443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 129193 + ... + 129715.

It is an arithmetic number, because the mean of its divisors is an integer number (4602816).

Almost surely, 2^67704442 is an apocalyptic number.

67704442 is a deficient number, since it is larger than the sum of its proper divisors (42763142).

67704442 is a wasteful number, since it uses less digits than its factorization.

67704442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 934 (or 921 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 34.

The square root of 67704442 is about 8228.2708997699. The cubic root of 67704442 is about 407.5732955591.

The spelling of 67704442 in words is "sixty-seven million, seven hundred four thousand, four hundred forty-two".