1730040761 has 4 divisors (see below), whose sum is σ = 1740654672. Its totient is φ = 1719426852.

The previous prime is 1730040743. The next prime is 1730040769. The reversal of 1730040761 is 1670400371.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1730040761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1730040769) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5306711 + ... + 5307036.

It is an arithmetic number, because the mean of its divisors is an integer number (435163668).

Almost surely, 2^1730040761 is an apocalyptic number.

It is an amenable number.

1730040761 is a deficient number, since it is larger than the sum of its proper divisors (10613911).

1730040761 is a wasteful number, since it uses less digits than its factorization.

1730040761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10613910.

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 1730040761 is about 41593.7586784364. The cubic root of 1730040761 is about 1200.4722125347.

The spelling of 1730040761 in words is "one billion, seven hundred thirty million, forty thousand, seven hundred sixty-one".