681849422 has 8 divisors (see below), whose sum is σ = 1024138272. Its totient is φ = 340470000.

The previous prime is 681849407. The next prime is 681849449. The reversal of 681849422 is 224948186.

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

It is a congruent number.

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, 225479 + ... + 228482.

It is an arithmetic number, because the mean of its divisors is an integer number (128017284).

Almost surely, 2^681849422 is an apocalyptic number.

681849422 is a deficient number, since it is larger than the sum of its proper divisors (342288850).

681849422 is a wasteful number, since it uses less digits than its factorization.

681849422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454714.

The product of its digits is 221184, while the sum is 44.

The square root of 681849422 is about 26112.2465904410. The cubic root of 681849422 is about 880.1624278345.

The spelling of 681849422 in words is "six hundred eighty-one million, eight hundred forty-nine thousand, four hundred twenty-two".