67616420 has 24 divisors (see below), whose sum is σ = 142418304. Its totient is φ = 26965856.

The previous prime is 67616407. The next prime is 67616431. The reversal of 67616420 is 2461676.

It is an unprimeable number.

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, 2069 + ... + 11811.

It is an arithmetic number, because the mean of its divisors is an integer number (5934096).

Almost surely, 2^67616420 is an apocalyptic number.

It is an amenable number.

67616420 is an abundant number, since it is smaller than the sum of its proper divisors (74801884).

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

67616420 is a wasteful number, since it uses less digits than its factorization.

67616420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10099 (or 10097 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 67616420 is about 8222.9204057926. The cubic root of 67616420 is about 407.3965913729.

The spelling of 67616420 in words is "sixty-seven million, six hundred sixteen thousand, four hundred twenty".