67057742 has 16 divisors (see below), whose sum is σ = 105144480. Its totient is φ = 32014752.

The previous prime is 67057733. The next prime is 67057747. The reversal of 67057742 is 24775076.

It is a junction number, because it is equal to n+sod(n) for n = 67057696 and 67057705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67057747) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 38384 + ... + 40092.

It is an arithmetic number, because the mean of its divisors is an integer number (6571530).

Almost surely, 2^67057742 is an apocalyptic number.

67057742 is a deficient number, since it is larger than the sum of its proper divisors (38086738).

67057742 is a wasteful number, since it uses less digits than its factorization.

67057742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2587.

The product of its (nonzero) digits is 82320, while the sum is 38.

The square root of 67057742 is about 8188.8791662840. The cubic root of 67057742 is about 406.2714541096.

The spelling of 67057742 in words is "sixty-seven million, fifty-seven thousand, seven hundred forty-two".