681303242 has 8 divisors (see below), whose sum is σ = 1028723232. Its totient is φ = 338395500.

The previous prime is 681303229. The next prime is 681303281. The reversal of 681303242 is 242303186.

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

It is a pancake number, because a pancake can be divided into 681303242 parts by 36913 straight cuts.

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, 1127684 + ... + 1128287.

It is an arithmetic number, because the mean of its divisors is an integer number (128590404).

Almost surely, 2^681303242 is an apocalyptic number.

681303242 is a deficient number, since it is larger than the sum of its proper divisors (347419990).

681303242 is a wasteful number, since it uses less digits than its factorization.

681303242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2256124.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 681303242 is about 26101.7861840909. The cubic root of 681303242 is about 879.9273536793.

The spelling of 681303242 in words is "six hundred eighty-one million, three hundred three thousand, two hundred forty-two".