68480738 has 8 divisors (see below), whose sum is σ = 102786732. Its totient is φ = 34218496.

The previous prime is 68480723. The next prime is 68480773. The reversal of 68480738 is 83708486.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 58323769 + 10156969 = 7637^2 + 3187^2 .

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

It is a super-2 number, since 2×68480738² = 9379222954049288, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6695 + ... + 13482.

Almost surely, 2^68480738 is an apocalyptic number.

68480738 is a deficient number, since it is larger than the sum of its proper divisors (34305994).

68480738 is a wasteful number, since it uses less digits than its factorization.

68480738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21876.

The product of its (nonzero) digits is 258048, while the sum is 44.

The square root of 68480738 is about 8275.3089368313. The cubic root of 68480738 is about 409.1251183933.

The spelling of 68480738 in words is "sixty-eight million, four hundred eighty thousand, seven hundred thirty-eight".