67620142 has 4 divisors (see below), whose sum is σ = 101430216. Its totient is φ = 33810070.

The previous prime is 67620097. The next prime is 67620151. The reversal of 67620142 is 24102676.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 67620142.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 16905034 + ... + 16905037.

It is an arithmetic number, because the mean of its divisors is an integer number (25357554).

Almost surely, 2^67620142 is an apocalyptic number.

67620142 is a deficient number, since it is larger than the sum of its proper divisors (33810074).

67620142 is a wasteful number, since it uses less digits than its factorization.

67620142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33810073.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 67620142 is about 8223.1467212984. The cubic root of 67620142 is about 407.4040663930.

The spelling of 67620142 in words is "sixty-seven million, six hundred twenty thousand, one hundred forty-two".