67425642 has 32 divisors (see below), whose sum is σ = 157723200. Its totient is φ = 21291984.

The previous prime is 67425619. The next prime is 67425643. The reversal of 67425642 is 24652476.

67425642 is a `hidden beast` number, since 6 + 7 + 4 + 2 + 5 + 642 = 666.

It is a super-2 number, since 2×67425642² = 9092434398224328, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 67425597 and 67425606.

It is not an unprimeable number, because it can be changed into a prime (67425643) 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 15 ways as a sum of consecutive naturals, for example, 31833 + ... + 33884.

It is an arithmetic number, because the mean of its divisors is an integer number (4928850).

Almost surely, 2^67425642 is an apocalyptic number.

67425642 is an abundant number, since it is smaller than the sum of its proper divisors (90297558).

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

67425642 is a wasteful number, since it uses less digits than its factorization.

67425642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65747 (or 65741 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

The square root of 67425642 is about 8211.3118318573. The cubic root of 67425642 is about 407.0130774332.

The spelling of 67425642 in words is "sixty-seven million, four hundred twenty-five thousand, six hundred forty-two".