168330742 has 4 divisors (see below), whose sum is σ = 252496116. Its totient is φ = 84165370.

The previous prime is 168330691. The next prime is 168330749. The reversal of 168330742 is 247033861.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 168330698 and 168330707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168330749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42082684 + ... + 42082687.

It is an arithmetic number, because the mean of its divisors is an integer number (63124029).

Almost surely, 2^168330742 is an apocalyptic number.

168330742 is a deficient number, since it is larger than the sum of its proper divisors (84165374).

168330742 is an equidigital number, since it uses as much as digits as its factorization.

168330742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84165373.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 168330742 is about 12974.2337731367. The cubic root of 168330742 is about 552.1466979530.

The spelling of 168330742 in words is "one hundred sixty-eight million, three hundred thirty thousand, seven hundred forty-two".