1720330934 has 8 divisors (see below), whose sum is σ = 2949138768. Its totient is φ = 737284680.

The previous prime is 1720330933. The next prime is 1720330973. The reversal of 1720330934 is 4390330271.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1720330934.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1720330933) 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, 61440377 + ... + 61440404.

It is an arithmetic number, because the mean of its divisors is an integer number (368642346).

Almost surely, 2^1720330934 is an apocalyptic number.

1720330934 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1720330934 is a deficient number, since it is larger than the sum of its proper divisors (1228807834).

1720330934 is a wasteful number, since it uses less digits than its factorization.

1720330934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122880790.

The product of its (nonzero) digits is 13608, while the sum is 32.

The square root of 1720330934 is about 41476.8722784156. The cubic root of 1720330934 is about 1198.2221204953. Note that the first 3 decimals are identical.

The spelling of 1720330934 in words is "one billion, seven hundred twenty million, three hundred thirty thousand, nine hundred thirty-four".