67657142 has 24 divisors (see below), whose sum is σ = 118601496. Its totient is φ = 28861728.

The previous prime is 67657133. The next prime is 67657147. The reversal of 67657142 is 24175676.

It is a junction number, because it is equal to n+sod(n) for n = 67657096 and 67657105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67657147) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21353 + ... + 24315.

It is an arithmetic number, because the mean of its divisors is an integer number (4941729).

Almost surely, 2^67657142 is an apocalyptic number.

67657142 is a deficient number, since it is larger than the sum of its proper divisors (50944354).

67657142 is a wasteful number, since it uses less digits than its factorization.

67657142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3212 (or 3205 counting only the distinct ones).

The product of its digits is 70560, while the sum is 38.

The square root of 67657142 is about 8225.3961606721. The cubic root of 67657142 is about 407.4783598480.

The spelling of 67657142 in words is "sixty-seven million, six hundred fifty-seven thousand, one hundred forty-two".