1681743334 has 8 divisors (see below), whose sum is σ = 2525093640. Its totient is φ = 840045456.

The previous prime is 1681743313. The next prime is 1681743341. The reversal of 1681743334 is 4333471861.

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, 410559 + ... + 414634.

It is an arithmetic number, because the mean of its divisors is an integer number (315636705).

Almost surely, 2^1681743334 is an apocalyptic number.

1681743334 is a deficient number, since it is larger than the sum of its proper divisors (843350306).

1681743334 is a wasteful number, since it uses less digits than its factorization.

1681743334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826214.

The product of its digits is 145152, while the sum is 40.

The square root of 1681743334 is about 41009.0640468665. The cubic root of 1681743334 is about 1189.1954484496.

The spelling of 1681743334 in words is "one billion, six hundred eighty-one million, seven hundred forty-three thousand, three hundred thirty-four".