68715442 has 8 divisors (see below), whose sum is σ = 106627500. Its totient is φ = 33172944.

The previous prime is 68715403. The next prime is 68715469. The reversal of 68715442 is 24451786.

It can be written as a sum of positive squares in 2 ways, for example, as 68707521 + 7921 = 8289^2 + 89^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 592317 + ... + 592432.

Almost surely, 2^68715442 is an apocalyptic number.

68715442 is a deficient number, since it is larger than the sum of its proper divisors (37912058).

68715442 is a wasteful number, since it uses less digits than its factorization.

68715442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1184780.

The product of its digits is 53760, while the sum is 37.

The square root of 68715442 is about 8289.4777881360. The cubic root of 68715442 is about 409.5919835429.

It can be divided in two parts, 687 and 15442, that added together give a square (16129 = 127²).

The spelling of 68715442 in words is "sixty-eight million, seven hundred fifteen thousand, four hundred forty-two".