67016420 has 48 divisors (see below), whose sum is σ = 152947200. Its totient is φ = 24572160.

The previous prime is 67016387. The next prime is 67016437. The reversal of 67016420 is 2461076.

It is a self number, because there is not a number n which added to its sum of digits gives 67016420.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8936 + ... + 14624.

It is an arithmetic number, because the mean of its divisors is an integer number (3186400).

Almost surely, 2^67016420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67016420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76473600).

67016420 is an abundant number, since it is smaller than the sum of its proper divisors (85930780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67016420 is a wasteful number, since it uses less digits than its factorization.

67016420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5748 (or 5746 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 67016420 is about 8186.3557215650. The cubic root of 67016420 is about 406.1879867473.

Adding to 67016420 its reverse (2461076), we get a palindrome (69477496).

The spelling of 67016420 in words is "sixty-seven million, sixteen thousand, four hundred twenty".